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Swap two any numbers (from Keyboard)
This is a simple Java Oriented language program. If you are newbie in Java programming then our tutorial and example are helpful for understanding Java programming in the simplest way.

Swap two any numbers (from Keyboard)

This is a simple Java Oriented language program. If you are newbie in Java programming then our tutorial and example are helpful for understanding Java programming in the simplest way. Here we will learn how to swap or exchange the number to each other. First of all we have to create a class "Swap". Now, we use the Integer.parseInt(args[o]) and Integer.parseInt(args[1]) methods for getting the integer type values in command line. Use a temporary variable z of type integer that will help us to swap the numbers Assign the value of x to z variable, now assign the value of y to the variable x. Lastly assign the value of z to variable y. Now we get the values has been interchanged. To display the values on the command prompt use println() method and the swapped values will be displayed.

Here is the code of this program


public class Swap {

  public static void main(String[] args) {

  

    int x= Integer.parseInt(args[0]);

    int y= Integer.parseInt(args[1]);

    System.out.println("Initial value:
"+ x +" and " + y);

    int z = x;

    x = y;

    y = z;

    System.out.println("Swapped value:
" + x +" and " + y);

  }

}

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Current Comments

2 comments so far (post your own) View All Comments Latest 10 Comments:

Hello i had a problem with the SWAP program. When I ran it gave me an error.

This is the error:

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0
at Swap.main(Swap.java:4)

Posted by Thabisa on Saturday, 07.11.09 @ 16:06pm | #89243

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hey thanks for this!

Posted by dinho on Thursday, 03.15.07 @ 07:03am | #11749

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