READ THIS PAGE COMPULSORY DONT SKIP

Dear Prof/Stud/Friend

                                  Thanks for all your valuable feedback.Really We are  working on your queries and requests.But currently second year to final year exam is going to commence as well as entrance exam is going on various states in India.So that we are working and preparing materials for them.All first year viewers please be patience for one week.We surely update the question banks as soon as possible.Sorry for the inconvenience.Please watch for portal and subscribe your mail id with us.

                                   Dont forget to mention your university name,regulation,state and country.   

                                  Upload your question banks if you have any materials and please contact us via contact form or live chat .Dont reply direct with direct mail because sometime there is few probability to consider your mail as SPAM....  

Here We are going to share some Engineering projects for your reference.

Once again thanks all visitors and contributors from various countries.

Note:Use our search Engine option in our web page to get your details

Uploaded by
Graham Watson

LATEST ENGINEERING PROJECTS AND TECHNOLOGY FOR ECE,EEE,CSE,IT,MECH,CIVIL,BIOMEDICAL

Contact us to get this file

We are not responsible for missing file its fully copyrighted graham watson from malasyia 

Read More

Simple Way to learn Java Programing in two Days

Simple Way to learn Java Programing in two Days JAVA PROGRAMING SIMPLE STEPS TO DEVELOP APLLICATIONS ND CODING

What is a CLASS & OBJECT? 

How do you differentiate these two ? Explain with examples.

                   A class is a template, blueprint, plan,design or protype from wichObjects can be derived
               If you create an object from a class , it means you created an instance of a class.
 

 A SMALL EXAMPLE IN MY VIEW.....

                               Suppose if you are planning to construct a house first step what you will do ?  you will go for design or plan of it, Once plan is ready you will start actual construction.    By keeping this plan with you,   construct  one more house ,like wise you can construct any number of houses.   Now here this plan is a class ,and actual construction is object. this class doesn't occupy any memory only object occupies memory.  From one class we can create ‘N’ number of objects.

Few points on Structured programming and Object oriented programming?

                   DESIGNER OF PASCAL LANGUAGE NIKLAUS WIRTH ONCE SAID

     "ALGORITHMS+DATASTRUCTURES=PROGRAMS".

HERE ALGORITHM COMES FIRST AND DATA STRUCTURES COMES SECOND.THIS IS HOW PROGRAMMERS  WERE  THINKING AT THAT TIME .FIRST THEY DECIDED THE PROCEDURES FOR MANIPULATIONS  OF DATA, THEN THEY DECIDED WHAT STRUCTURE TO IMPOSE ON DATA TO MAKE MANIPULATIONS EASIER.OOP  REVERSES THE ORDER AND PUTS DATA FIRST, THEN LOOKS AT THE ALGORITHM THAT OPERATE ON THE DATA. FOR SMALL PROGRAMS PROCEDURES WORKS WELL, BUT OBJECTS ARE BETTER FOR LARGER PROGRAMS. DEBUGGING ALSO EASIER  WITH  OOP.

Goals of JAVA!

When Java was invented it has few goals in mind,

1.       It should be simple

2.       It should be Object-Oriented

3.       It should be “robust and secure”

4.       It should be “platform independent and portable”

5.       It should execute with high performance

6.       It should be “interpreted, threaded and Dynamic”

What is JAVA ?

JAVA IS A PROGRAMMING LANGUAGE.

AS A WHOLE  JAVA IS A PLATFORM, WITH LARGE LIBRARY, CONTAINING LOTS OF REUSABLE CODE, AND AN EXECUTION ENVIRONMENT THAT PROVIDE SERVICES SUCH AS SECURITY, PORTABILITY ACROSS SYSTEMS AND AUTOMATIC GARBAGE COLLECTION.

JAVA IS A HIGH QUALITY ENVIRONMENT AND LIBRARY.

History of JAVA

                       Actually Java was originally designed for programming consumer devices, but it was first succeful ly used to with internet applets.In the year 1991, when a group of SUN  engineers (which is now subsidiary  of oracle corporation) led by James Gosling,  Patrick Nauton, Mile Sheridon  wanted to design a small computer language that could be used for    consumer devices like, cable TV switch boxes, remote controller, Microwave oven. Because these devices do not have lot of memory the language had to be small and generate very tight code. Also, because different manufacturers may choose different CPUs, it was important that the language not be tied to as single architecture, the project was code-named “Green”.

Later it renamed as “OAK” after an oak tree that stood outside gosling’s office. Then it renamed as JAVA.

Versions history you can find in the wiki:-

http://en.wikipedia.org/wiki/Java_version_history

When API was growing it because difficult for SUN to Maintain. 


They divided it in to 3 parts

1. J2SE            2.J2EE               3.J2ME
and now it is called
 1.JSE             2.JEE                 3.JME

What is Programming?

                                   NOW A DAY COMPUTERS BECAME PART OF HUMAN LIFE .MANY PEOPLE USES IT FOR DIFFERENT PURPOSES LIKE PLAYING GAMES, BANKING TRANSACTIONS, AND FOR ONLINE PURCHASES. THESE COMPUTERS HAS NO INTELLIGENCE BY ITSELF, IT SIMPLY EXECUTES INSTRUCTIONS THAT HAVE BEEN PREPARED IN ADVANCE. IN ORDER TO ACHIEVE THIS FLEXIBILITY THE COMPUTERS MUST BE PROGRAMMED TO PERFORM EACH TASK, DIFFERENT TASKS REQUIRE DIFFERENT PROGRAMS. THESE PROGRAMS ARE SEQUENCE OF INSTRUCTIONS AND DECISION THAT COMPUTERS CARRYOUT TO ACHIEVE A TASK.  THE ART OF WRITING THESE KINDS OF PROGRAMS IS NOTHING BUT PROGRAMMING.   

  Simple Way to learn Java Programing in two Days


















STRINGS BASIC PROGRAM SERIES-1
































PROGRAM TO WRITE A REVERSE OF A STRING:-


 package com.javainchennai;

 import java.util.Scanner;

public class StringReverse {

    public static void main(String[] args) {



        Scanner sc=new Scanner(System.in);

        System.out.println("Enter a String");

        String str=sc.nextLine();

        int strLen=str.length();

        char c[]=new char[20];

        

        for(int i=0,j=strLen-1;i<strLen;i++,j--)

        {

            c[i]=str.charAt(j);

            System.out.print(c[i]);

        }    

    }

}





OUTPUT:-



Enter a String



madam123



321madam






STRING PALINDROME PROGRAM

package com.javainchennai;

import java.util.Scanner;

public class Stringpolindrome {

    public static void main(String[] args) {



    

    int i,j=0;

    Scanner sc=new Scanner(System.in);

    System.out.println("Enter your String:-");

    String str=sc.next();

    char c[]=new char[20];

    c=str.toCharArray();

    i=str.length();

    --i;

    while(j<=i)

    {

        if(c[i]!=c[j])

        {

            System.out.println("The given string "+ str +" is not polindrome");

            System.exit(0);    

        }

        ++j;

        --i;

        

    }

    System.out.println("The given string" + str +"is polindrome");

    }

}


OUTPUT-1 :








Enter your String:-



javainchennai



The given string javainchennai is not polindrome








OUTPUT-2 :








Enter your String:-



malayalam



The given string  malayalam is polindrome




































FINDING THE LENGTH OF A STRING




package com.javainchennai;

import java.util.Scanner;

public class StringLength {

    public static void main(String[] args) {

     Scanner sc=new Scanner(System.in);

     System.out.println("Please Enter your String:-");

     String str=sc.nextLine();

     char c[]=new char[10];

     

      c= str.toCharArray();

    int count=0;

    try{

     for( count=0;c[count] !='\0'; count++);

    }

     catch (ArrayIndexOutOfBoundsException e) {

       System.out.println(count);

     } 

      

    }


}





Please Enter your String:-



questionabanks



The Length of the Given String is: 13






































FINDING THE NUMBER OF WORDS IN A STRING






package com.javainchennai;

import java.util.Scanner;

public class NoOfWordsInAString {

    public static void main(String[] args) {

        Scanner sc=new Scanner(System.in);

        System.out.println("Enter your string:-");

        String str=sc.nextLine();

        int strLen=str.length();

        int word=1;

        for(int i=0;i<strLen-1;i++)

        {

            if((str.charAt(i))==' ')

            {

                word++;

            }    

        }

        System.out.print("The Number of words in the Given String are :" +word);

    }



}








OUTPUT:-








Enter your string:-



question banks



The Number of words in the Given String are :2




















--------------------------------------------------------------------------------------------------------------
























Before going into programs a small introduction on Strings




If there is any mistakes in this article please write me  blog4helping@gmail.com




======================

               -:STRINGS:-

======================

1.String is a class in Java

2.String means collection of characters

3.String is a sequence of characters enclosed in double Quotes.

4.Java Strings are sequence of Unicode characters 

5.String class produces Immutable objects.

6.String class does not have a methods that let you change a characters in an existing String.

7.It is like number 5 , the String "HELLO" we cannot change it.

    



Sting Objects can be created in 2 ways

       

           1. without using new operator

                         String str1="javainchennai";

       

           2. with using new operator 

                         String str2=new String("javainchennai");

                

  

The memory space is divided in to 2 parts 




                      1.constant area

                      2.non-constant area        

   

If you create object without using new operator this will be saved in constant area




                       String str1="javainchennai";

                  




If you create object with using new operator this will be saved in non-constant area

                        

                      String str2=new String("javainchennai");







Here Constant area will not allow duplicates

 where as non-constant area will allow duplicates. 










Do Remember inside a String class the toString() method is  overided 

   

    Here if you try to print reference variable

         

         String s1="javainchennai";




         System.out.println(s1);




         The output is javainchennai   instead of String@ff2201(classname @ hexadecimal value)







equals() method also overrided to check 2 objects based on the value(content) it contains




   

observe the program carefully and read the explanation:-










1.package com.qb;

2.public class StringTest {

3.    public static void main(String[] args) {




4.        String str1="javainchennai";

5.        String str2="javainchennai";

6.        String str3=new String("javainchennai");

7.        String str4=new String("javainchennai");




8.        System.out.println(str1==str2);

9.        System.out.println(str1==str3);

10.        System.out.println(str2==str3);

11.        System.out.println(str3==str4);




12.        System.out.println(str1.equals(str2));

13.        System.out.println(str1.equals(str3));

14.        System.out.println(str2.equals(str3));

15.        System.out.println(str3.equals(str4));

16.    }




17.   }




output:-

true

false

false

false

true

true

true

true




explanation:-




If you say 5==5 is true, here two are primitive literals so == operator(checks content) prints true.




If you use == operator to compare two object references it will see whether both references are pointing to same object or different.







If both references are pointing to same object it(== operator) returns true otherwise false.




observe line4 and line5 ,here actually I created String object without using new operator so, str1 and str2 both references are pointing to same object (javainchennai). (constant area will not allow duplicates)

so, str1==str2 returns true.







observe line4 and line5 ,here actually I created String object by using new operator so, str3 and str4 both references are pointing to different objects (javainchennai).(non constant area allows duplicates). 

So, str3==str4 returns false.







Observe the same effect with equals() method it returns true all time .(because it is overrided to compare based on content inside object)







PROGRAMS:-




program:-




1.public class StringTest {




2.    public static void main(String[] args) {




3.                            System.out.println(3+5);




4.                            System.out.println("3"+5);




5.                            System.out.println(3+"555");




6.                            System.out.println(3+2+5+"4444");




7.                            System.out.println("35"+111+"99");




8.                            System.out.println("42"+11+32+"77");




9.                            System.out.println("100"+"222");




   }




}




OUTPUT:-

8

35

3555

104444

3511199

42113277

100222







Explanation:-

-------------

In Java there is no operator overloading concept.




+ is the only one operator overloaded to add 2 integers as well as 2 strings




In the above example we added 2 primitives that is common ,




when we added String with any primitives only String object is produced.




observe the output of lines 6,7,8,9.














DIFFERENCES BETWEEN STRING , STRINGBUFFER AND STRINGBUILDER






String:-



------------------


1.String class introduced in jdk1.0

2.String class is a final class and implements Serializable,Comparable and CharSequence interfaces
3.String Objects can be created in two ways
    a.Using new operator

constructors to create String ob
    b.Without using new operator
4.-----
5. String class has several
 jects(both using new or without using new operator)
     a.String s1="";
     

that it represents an empty char
     b.String s2=new String("");
               Initializes a  String object so
 acter sequence.

     c.String s1="javainchenna";





resents the same sequence of characters as the argument    


    
5.String class has no append method.






6.There
        Initializes a  String object so that it re
p is no delete method to delete a characters from .

7.StringBuilder objects are Non-Synchronized.


------------------

StringBuffer:-    

------------------

StringBuffer and StringBuilder has the same methods:-
1.String class introduced in jdk1.0






lements Serializable and CharSequence interfaces









.StringBuffer Objects cannot  be cre



3
2.String class is a final class and im
pated without using  new operator
     StringBuffer s2="javainchennai";(wrong way)   
    





ffer("");








         Constructs a StringBuffer with no




4.use new operator to create objects of StringBuffer
         StringBuffer sb1=new StringB
u characters in it and an initial capacity of 16 characters.







g representation of the any type(primitive or derived) argument to the sequence.









.There is a delete method  to delete a characters from this 



6
5.StringBuffer class has append() method , It appends the stri
nobject.

7.StringBuffer objects are Synchronized.StringBuffer was being used by a single thread.

------------------

StringBuilder:-

------------------

.String class introduced in jdk1.5

1,





tring class is a final class and implements Serializable and CharSequence interfaces








3
2.
S.StringBuffer Objects cannot  be created without using  new operator





or to create objects of StringBuilder








         Strin




        StringBuilder s3="javainchennai";(wrong way)

4.use new opera
tgBuilder sb1=new StringBuilder();   





th no characters in it and an initial capacity of 16 characters.


    







ngBuilder class has appen



5.Str
i
         Constructs a StringBuilder w
id() method,It appends the string representation of the any type(primitive or derived) argument to the sequence.


d.
6. There is a delete method  to delete a characters from this object.

7.StringBuilder objects are Non-Synchroniz

e






















--------------------------------------------------------------------------------------------------------------


























FIND BIGGEST OF 3 NUMBERS:





import java.util.Scanner;



public class biggest



 {



            public static void main(String[] args)



{



                        System.out.println("Enter 3 numbers");



                        Scanner sc=new Scanner(System.in);



                        int a=sc.nextInt();



                        int b=sc.nextInt();



                        int c=sc.nextInt();



                        int max=a;



                        if(b>max)



                                    max=b;



                        if(c>max)



                                    max=c;



                        System.out.println("The biggest of 3 numbers:"+max);



                        }



}







Output:





Enter 3 numbers



65



98



43



The biggest of 3 numbers:98


















FIND GIVEN NUMBER IS ODD OR  EVEN:







import java.util.Scanner;



public class evenodd



{



            public static void main(String[] args)



{



                        System.out.println("Enter the number");



                        Scanner sc=new Scanner(System.in);



                        int num=sc.nextInt();



                        if(num/2==1)



                                                System.out.println("Number is ODD");



                        else



                                    System.out.println("Number is EVEN");



                                    }



}











Output:





Enter the number



88


Number is EVEN

















FIND GIVEN NUMBER IN PERFECT SQUARE OR NOT:







import java.util.Scanner;



public class perfectsquare



{



            public static void main(String[] args)



{



                        System.out.println("Enter a number");



                        Scanner sc=new Scanner(System.in);



                        int num=sc.nextInt();



                        double num1=Math.sqrt(num);



                        double num2=num1;



                        if(num1==num2)



                                    System.out.println(num + "is a perfect square");



                        else



                                    System.out.println(num + "is not a perfect square");



            }



}











Output:





Enter a number





100



100is a perfect square




















WRITE A PROGRAM TO FIND GIVEN NUMBER IS PALINDROME OR NOT





import java.util.Scanner;



public class PalindromeOfNumber



{



            public static void main (String[] args)



 {



                         int mod=0;



                         int c=0;



                         int d=0;



                         int num1=0;



                         System.out.println("Enter a number:");



                                    Scanner sc=new Scanner(System.in);



                                     int num=sc.nextInt();



                                    num1=num;



           while(num>0)



           {



               mod=num%10;



               c=c+mod;



               num=num/10;



               d=mod+d*10;



                          }



           if(num1==d)



           {   System.out.println("The given number "+num1+" is palindrome");



           }



           else



           {



               System.out.println("The given number "+num1+" is not palindrome");



           }



            }



}



OUTPUT:



RUN 1:





Enter a number:



1523



The given number 1523 is not palindrome






















WRITE A PROGRAM TO FIND GIVEN NUMBER IS PRIME OR NOT





import java.util.Scanner;



public class PrimeOrNot



{



            public static void main(String[] args)



{



    System.out.println("Enter the number:");



     Scanner sc=new Scanner(System.in);



     int i;



     int flag=0;



     long num=sc.nextLong();



     if(num<=3)



             System.out.println("The given number is prime:");



     else



              for(i=2;i<=num/2;i++)



                          if(num%i==0)



                          {



                                      flag=1;



                                      break;



                          }



                          else



                                      flag=0;



     if(flag==1)



             System.out.println("The given number "+num+"  is not prime");



     else



             System.out.println("The given number "+num+" is prime");



                        }



}





Output1:





Enter the number:



5



The given number 5 is prime





Output2:





Enter the number:



55



The given number 55  is not prime


















WRITE A PROGRAM TO DISPLAY MULTIPLICATION TABLE





import java.util.Scanner;



public class multiplicationtable



{



            public static void main(String[] args)



{



                        System.out.println("Enter the table number and the count value:");



                        Scanner sc=new Scanner(System.in);



                        int tnum=sc.nextInt();



                        int count=sc.nextInt();



                        System.out.println("The table is ...");



                        for(int i=1;i<=count;i++){



                        System.out.println(tnum+"*"+i+"=" + i*tnum);



                        }



            }



}







Output:



Enter the table number and the count value:



8



10



The table is ...



8*1=8



8*2=16



8*3=24



8*4=32



8*5=40



8*6=48



8*7=56



8*8=64



8*9=72



8*10=80




















WRITE A PROGRAM TO FIND COMMAND LINE NUMBER COUNT





public class CommandLineNumbersCount



 {



            public static void main(String[] args)



{



                  int l=args.length;



         System.out.println(l);



            }



 }





OUT PUT:



Java CommandLineNumbersCount 10 5 23 4 2



                5



            java CommandLineNumbersCount 21 3 36 4



               4






















WRITE A PROGRAM TO SORT THE DIGITS OF A NUMBER IN ASCENDING ORDER





import java.util.Scanner;



public class SortDigitsInInteger



{



            public static void main(String[] args)



{



                        Scanner sc=new Scanner(System.in);



                        System.out.println("Enter a number:-");



                        int num=sc.nextInt();



                        int a,i=0;



                        int sort[]=new int[10];



                while(num>0)



                {



                 a=num%10;



                 sort[i]=a;



                 i++;



                 num=num/10;



                }



                for(int j=0;j<i-1;j++)



                 for(int k=j+1;k<i;k++)



                 if(sort[j]>sort[k])



                 {



                         int temp=sort[j];



                         sort[j]=sort[k];



                         sort[k]=temp;



                 }



                System.out.println("The digits in number ascending order:");



                for(int j=0;j<i;j++)



                        System.out.print(sort[j]+" ");



            }



}







OUTPUT:



Enter a number:-



4261



The digits in number ascending order:



1 2 4 6
















WRITE A PROGRAM TO SORT A NUMBER IN ASCENDING ORDER





import java.util.Scanner;



public class SortNumbersInAscendingOrder



{



            public static void main(String[] args)



{



                        Scanner sc=new Scanner(System.in);



                        System.out.println("Enter Number of elements:-");



                            int limit=sc.nextInt();



                            System.out.println(" Enter Elements:- ");



                            int a[]=new int[10];



                            for(int  i=1;i<=limit;i++)



                            {  



                               a[i]=sc.nextInt();



                            }



                             for(int  i=0;i<limit-1;i++)



                                    for(int j=i;j<limit;j++)



                                                            if(a[i]>a[j])



                                                            {



                                                int        temp=a[i];



                                                            a[i]=a[j];



                                                            a[j]=temp;



                                  }



       System.out.println("The sorted list is:-");



        for( int i=0;i<limit;i++)



                      System.out.print("   "+a[i]);



            }



}





OUTPUT:



Enter Number of elements:-



5



 Enter Elements:-



15 25 16 12 4



The sorted list is:- 



  0   12   15   16   25




















-------------------------------------------------------------------------------------------------



























PROGRAMMING WITH RECURSION  






























 Fibonacci series



import java.util.Scanner;



public class FibonacciSeries



{



            public static void main(String[] args)



            {



                        int x=0,y=1;



                        Scanner sc=new Scanner(System.in);            



                        System.out.println("Enter a Number:-");    



                int z=sc.nextInt();



                System.out.println("The fibo series is:- ");



                fiboSeries(z,x,y);



            }



            private static void fiboSeries(int x,int f,int f1)



            {



                        if(x==0)



                            System.exit(0);



                        System.out.print("  " + (f+f1));



                        fiboSeries(--x,f1,f+f1);



            }



}









OUTPUT



Enter a Number:-



8





The fibo series is:-


  1  2  3  5  8  13  21  34








Enter a Number:-



10





The fibo series is:-



  1  2  3  5  8  13  21  34  55  89






  




















Tribonacci series 
















mport java.util.Scanner; 




i
















ublic class TribonacciSeries




p



{



            public static void main(String[] args)



            {



                        int x=-1,y=1,z=0;



                        Scanner sc=new Scanner(System.in);            



                        System.out.println("Enter a Number:-");    



                int n=sc.nextInt();



                System.out.println("The tribo series is:- ");



                triboSeries(n,z,x,y);



            }



            private static void triboSeries(int x,int f,int f1,int f2)



            {



                        if(x==0)



                            System.exit(0);



                        System.out.print("  " + (f+f1+f2));



                        triboSeries(--x,f1,f2,f+f1+f2);



            }



}









OUTPUT



Enter a Number:-



10





The tribo series is:-



  0  0  1  1  2  4  7  13  24  44







Enter a Number:-



8





The tribo series is:-



  0  0  1  1  2  4  7  13











 WRITE A PROGRAM TO FIND THE POWER OF THE NUMBER





import java.util.Scanner;



public class XpowN



{



            public static void main(String[] args)



{



                       



            Scanner sc=new Scanner(System.in);



            System.out.println("Enter the values of X and N:-");



            double x=sc.nextDouble();



            int n=sc.nextInt();



            System.out.println(power(x,n));         



            }



            private static double power(double x,int n)



            {



                        double pow=0;



                         pow= ((n==0)?1:x*power(x,n-1));



                       



                        return pow;



            }



}











OUTPUT







Enter the values of X and N:-



10



5





100000.0





Enter the values of X and N:-



5 2



25.0























--------------------------------------------------------------------------------------------------------------






















PROGRAM TO READ AN INTEGER AND REDUCE IT TO A SINGLE DIGIT



import java.util.Scanner;



public class DigitReduce



 {



            public static void main(String[] args)



{



                        Scanner sc=new Scanner(System.in);



                        System.out.println("Enter a Number:-");    



                long num=sc.nextLong();



                System.out.println(" " + calculateDigit(num));



            }



            private static long calculateDigit(long num)



{



                       



                        return (num/10 == 0 ? num : calculateDigit(num/10 + num % 10));



            }



}









OUTPUT



Enter a Number:-



4789



 1





Enter a Number:-



3348



 9
















WRITE A PROGRAM TO DISPLAY AMOUNT INTO 500’S,100’S,50’S,20’S,10’S,5’S,2’S,1’S IN A GIVEN NUMBER





import java.util.Scanner;



public class AmountCount



{



      public static void main(String[] args)



{



              System.out.println("Enter the amount in rupees:-");



              Scanner sc=new Scanner(System.in);



              int num=sc.nextInt();



              while(num>=500)



              {



                        int a=num/500;



                        System.out.print("\n The no .of five hundreds are:- "+ a);



                        break;



              }



              while(num>=100){



                          int a=num/100;



                        System.out.print("\n The no .of hundreds are :-"+ a);



                        break;



              }



              while(num>=50){



                          int a=num/50;



                        System.out.print("\n The no .of fiftie's are "+ a);



                        break; 



              }



              while(num>=20)



              {



                           int a=num/20;



                           System.out.print("\n The no .of twenty's are "+ a);



                           break;



              }



              while(num>=10){



                          int a=num/10;



                        System.out.print("\n The no .of ten's are "+ a);



                        break;



              }



              while(num>=5){



                          int a=num/5;



                        System.out.print("\n The no .of five's are "+ a);



                        break; 



              }



              while(num>=2){



                          int a=num/2;



                        System.out.print("\n The no .of two's are "+ a);



                        break;



           





  }



              while(num>=1)



              {



                          int a=num/1;



                        System.out.print("\n The no.of one's are"+ a);



                        break;



              }



              }



            }





OUTPUT:





Enter the amount in rupees:-



1854





 The no .of five hundreds are 3



 The no .of hundreds are 18



 The no .of fiftie's are 37



 The no .of twenty's are 92



 The no .of ten's are 185



 The no .of five's are 370



 The no .of two's are 927



 The no.of one's are1854


















WRITE A PROGRAM TO SORT A NUMBER IN ASCENDING ORDER












import java.util.Scanner;



public class SortNumbersInAscendingOrder



{



            public static void main(String[] args)



{



                        Scanner sc=new Scanner(System.in);



                        System.out.println("Enter Number of elements:-");



                            int limit=sc.nextInt();



                            System.out.println(" Enter Elements:- ");



                            int a[]=new int[10];



                            for(int  i=1;i<=limit;i++)



                            {  



                               a[i]=sc.nextInt();



                            }



                             for(int  i=0;i<limit-1;i++)



                                    for(int j=i;j<limit;j++)



                                                            if(a[i]>a[j])



                                                            {



                                                int        temp=a[i];



                                                            a[i]=a[j];



                                                            a[j]=temp;



                                  }



       System.out.println("The sorted list is:-");



        for( int i=0;i<limit;i++)



                      System.out.print("   "+a[i]);



            }



}





OUTPUT:



Enter Number of elements:-



5



 Enter Elements:-



15 25 16 12 4



The sorted list is:-



   0   12   15   16   25





















--------------------------------------------------------------------------------------------------------------

















WRITE A PROGRAM TO CONVERT INTEGER INTO IT’S EQUIVALENT NAME









import java.util.Scanner;



public class IntegerToItsEqualentName



{



            public static void main(String[] args)



{



                        Scanner sc=new Scanner(System.in);



                        System.out.println("Enter Number");



                 int num=sc.nextInt();



                 int m=0,c=0;



                 int a[]=new int[10];



                 while(num>0)



{



                         m=num%10;



                         a[c]=m;



                         num=num/10;



                         c++;



                 }



                for(int k=c-1;k>=0;k--)



{



                switch (a[k])



{



                case 0:System.out.print("ZERO ");



        break;



                        case 1:System.out.print("ONE ");



                                       break;



                case 2:System.out.print("TWO ");



                        break;



                case 3:System.out.print("THREE ");



                        break;



                case 4:System.out.print("FOUR ");



                        break;



                case 5:System.out.print("FIVE ");



                        break;



                case 6:System.out.print("SIX ");



                          break;



                case 7:System.out.print("SEVEN ");



                        break;



                case 8:System.out.print("EIGHT ");



                         break;



                case 9:System.out.print("NINE ");



                    









    break;



                        default:



                                    break;



                        }



}



                



            }



}





OUTPUT:








Enter Number



12069



ONE TWO ZERO SIX NINE




















PROGRAM FOR SWAPPING TWO NUMBERS USING THREE VARIABLES





import java.util.Scanner;



public class Output



{



            public static void main(String[] args)



{



                        System.out.println ("enter 2 numbers");



                        Scanner sc=new Scanner(System. in);



                        int num1 =sc.nextInt();



                        int num2 =sc.nextInt();



                        System.out.println("Before swapping");



                        System.out.println("num1:"+num1+"\n"+"num2:"+num2);



                        int temp=num1;



                           num1=num2;



                           num2=temp;



        System.out.println("After swapping");



        System.out.println("num1:"+num1+"\n"+"num2:"+num2);



            }



}





Output:





enter 2 numbers



55



65



Before swapping



num1:55



num2:65



After swapping



num1:65



num2:55
















PROGRAM FOR SWAPPING TWO NUMBERS WITHOUT USING THIRD VARIABLE





import java.util.Scanner;



public class swapping2



 {



public static void main(String args[])



            {                                                                                  



              System.out.println("Enter 2 numbers");



              Scanner sc=new Scanner(System.in);



              int num1=sc.nextInt();



              int num2=sc.nextInt();



              System.out.println("Before swapping");



              System.out.println("num1:"+num1+"\n"+"num2:"+num2);



                 num1=num1+num2;



                 num2=num1-num2;



                 num1=num1-num2;



              System.out.println("After swapping");



              System.out.println("num1:"+num1+"\n"+"num2:"+num2);



                          }



}





Output:





Enter 2 numbers



23



32



Before swapping



num1:23



num2:32



After swapping



num1:32



num2:23



   
















SWAPPING 2 NUMBERS WITHOUT USING ARITHMETIC OPERATORS





import java.util.Scanner;



public class arithmatic



 {



            public static void main(String[] args)



{



            System.out.println("Enter 2 numbers");



            Scanner sc=new Scanner(System.in);



              int num1=sc.nextInt();



              int num2=sc.nextInt();



              System.out.println("Before swapping");



              System.out.println("num1:"+num1+"\n"+"num2:"+num2);



                 num1=num1^num2;



                 num2=num1^num2;



                 num1=num1^num2;



              System.out.println("After swapping");



              System.out.println("num1:"+num1+"\n"+"num2:"+num2);



            }



}





Output:







Enter 2 numbers



19



91



Before swapping



num1:19



num2:91



After swapping



num1:91



num2:19
























--------------------------------------------------------------------------------------------------------------





















        WHETHER IT IS C , C++, C# OR JAVA , WORKING WITH THESE KIND OF PROGRAMS GIVES YOU LOT OF  FUN :-
 
 

















Write a program to display the following output


  


1 



2  2 



3  3  3 



4  4  4  4 



5  5  5  5  5 





import java.util.Scanner;



public class ForLoop1



{



            public static void main(String[] args)



               {



                           System.out.println("Enter the limit:-");



                           Scanner sc=new Scanner(System.in);



                           int limit=sc.nextInt();



                            for(int i=1;i<=limit;i++)



                                {



                                     for(int j=1;j<=i;j++)



                                        {



                                          System.out.print( i +"  ");



                                          }



                                         System.out.println();



                               }



                  }



}








Enter the limit:-



5





1 



2  2 



3  3  3 



4  4  4  4 



5  5  5  5  5 






















Write a program to display the following output 



1 



1  2 



1  2  3 



1  2  3  4 



1  2  3  4  5 





package com.vel.nestedforloop;



import java.util.Scanner;



public class ForLoop2



{



            public static void main(String[] args)



              {



                             System.out.println("Enter the limit:-");



                            Scanner sc=new Scanner(System.in);



                               int limit=sc.nextInt();



                              for(int i=1;i<=limit;i++)



                               {



                                 for(int j=1;j<=i;j++)



                                    {



                                      System.out.print( j +"  ");



                                     }



                                 System.out.println();



                               }



        }


}




Enter the limit:-



5







                                                                        1  



                                                                        1  2  



                                                                            1  2  3 



                                                                                     1  2  3  4  



                                                                                      1  2  3  4  5




























Write a program to display the following output








1 



2  3 



4  5  6 



7  8  9  10 



11  12  13  14  15 



16  17  18  19  20  21 







package com.vel.nestedforloop;



import java.util.Scanner;



public class ForLoop3



{



            public static void main(String[] args)



{



                           System.out.println("Enter the limit:-");



                           Scanner sc=new Scanner(System.in);



           int limit=sc.nextInt();



           int k=1;



           for(int i=1;i<=limit+1;i++)



{



               for(int j=1;j<=i;j++)



{



                           System.out.print( k++ +"  ");



               }



               System.out.println();



           }



            }



}







Enter the limit:-



5





1 



2  3 



4  5  6 



7  8  9  10 



11  12  13  14  15 



16  17  18  19  20  21 
















WRITE A PROGRAM TO DISPLAY THE FOLLOWING OUTPUT
 







3 2 1 0 1 2 3 






import java.util.Scanner;



public class LineFormat



{



            public static void main(String[] args)



{



                        int i,j,k;



                        System.out.println("Enter Limit:-");



                        Scanner sc= new Scanner(System.in);



                        int n=sc.nextInt();



                        k=n;



                        for(i=0;n>=i;i++,k--)



                                    System.out.print(" "+k);



                        k=1;



                        for(j=0;j<n;j++,k++)



                                    System.out.print(" "+k);



            }



}








OUTPUT



Enter Limit:-



3





 3 2 1 0 1 2 3




















Write a program to display the following output









  



  




 1



 1    1



 1    1    1









import java.util.Scanner;



public class NumberGenerator



{



public static void main(String[] args)



{



            int i,j;



            System.out.println("ENTER THE NUMBER TO BE DISPLAYED :-");



            Scanner sc=new Scanner(System.in);



            int a=sc.nextInt();



            System.out.println("ENTER THE SIZE :-");



            int n=sc.nextInt();



            for(i=0;i<n;i++)



            {



                        for(j=0;j<=i;j++)



                        System.out.print(" "+a);



                        System.out.println();



            }         



}





}





ENTER THE NUMBER TO BE DISPLAYED :-



1



ENTER THE SIZE :-



3





 1



 1    1



 1    1    1






  











WRITE A PROGRAM TO DISPLAY THE FOLLOWING OUTPUT





ENTER THE LIMIT:-



6





1



2 1



3 2 1



4 3 2 1



5 4 3 2 1





import java.util.Scanner;



public class GenerateNumber1



{



            public static void main(String[] args)



{



                        int i,j;



                        System.out.println( "ENTER THE LIMIT:-");



                        Scanner sc=new Scanner(System.in);



                        int n=sc.nextInt();



                        for(i=1;i<n;i++)



                        {



                                    for(j=i;j>0;j--)



                                    {



                                                System.out.print(j+" ");



                                    }



                                    System.out.println();



                        }



            }



}





OUTPUT







ENTER THE LIMIT:-



6





1



2 1



3 2 1



4 3 2 1



5 4 3 2 1





















Write a program to print the following output





1  0  0  0



0  2  0  0



0  0  3  0



0  0  0  4







import java.util.Scanner;



public class GenerateNumber1



{



            public static void main(String[] args)



{



                        int i,j,x=0;



                        System.out.println( "ENTER THE LIMIT:-");



                        Scanner sc=new Scanner(System.in);



                        int n=sc.nextInt();



                        for(i=1;i<=n;i++)



                        {



                                    for(j=1;j<=n;j++)



                                    {



                                                if(i==j)



                                                   System.out.print(i+" ");



                                                else



                                                            System.out.print(x +" ");



                                    }



                                    System.out.println();



                        }



            }



}




















Write a program to print the following output with the given character





ENTER THE CHARACTER TO BE DISPLAYED:-



7



ENTER THE LIMIT:-



4





7 7 7 7



7 7 7 7



7 7 7 7



7 7 7 7





import java.util.Scanner;



public class GenerateNumber1



{



            public static void main(String[] args)



{



                        int i,j,x=0;



                        Scanner sc=new Scanner(System.in);



                        System.out.println("ENTER THE CHARACTER TO BE DISPLAYED:-");



                   int  c=sc.nextInt();



                        System.out.println( "ENTER THE LIMIT:-");



                        int n=sc.nextInt();



                       



                        for(i=1;i<=n;i++)



                        {



                                    for(j=1;j<=n;j++)



                                    {



                                                   System.out.print(c+" ");



                                    }



                                    System.out.println();



                        }



            }


}















.Write a program to print the following output with the given character





ENTER THE CHARACTER TO BE DISPLAYED:-



8





ENTER THE LIMIT:-



4





8 8 8 8



8       8



8       8



8 8 8 8





import java.util.Scanner;



public class GenerateNumber1



{



            public static void main(String[] args)



{



                        int i,j,x=0;



                        Scanner sc=new Scanner(System.in);



                        System.out.println("ENTER THE CHARACTER TO BE DISPLAYED:-");



                   int  c=sc.nextInt();



                        System.out.println( "ENTER THE LIMIT:-");



                        int n=sc.nextInt();



                       



                        for(i=1;i<=n;i++)



                        {



                                    for(j=1;j<=n;j++)



                                    {   



                                          if(i==1||j==1||j==n||i==n)  



                                                   System.out.print(c+" ");



                                          else



                                                  System.out.print("  ");



                                    }



                                    System.out.println();



                        }



            }



}
















Program to read an integer and reduce it to a single digit





import java.util.Scanner;



public class DigitReduce



 {



            public static void main(String[] args)



{



                        Scanner sc=new Scanner(System.in);



                        System.out.println("Enter a Number:-");    



                long num=sc.nextLong();



                System.out.println(" " + calculateDigit(num));



            }



            private static long calculateDigit(long num)



{



                       



                        return (num/10 == 0 ? num : calculateDigit(num/10 + num % 10));



            }



}









OUTPUT



Enter a Number:-



4789



 1





Enter a Number:-



3348



 9

Read More