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SwapTrick.java

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import java.util.Scanner;

class SwapTrick

{

public static void main(String args[])

{

int x, y;

System.out.println("Enter 1st and 2nd");

Scanner in = new Scanner(System.in);

x = in.nextInt();

y = in.nextInt();

System.out.println("Before Swapping\n first No. = "+x+"\n 2nd No. = "+y);

y=x+y-(x=y); // check this

System.out.println("After Swapping\n first No. = "+x+"\n 2nd No. = "+y);

in.close();

}