Java Playground - Using Loops to Interchange 2 variables.: Online Interpreter, Compiler & Editor

JAVA

java

import java.util.*;
public class interchange
{
    public static void main(String[] args)
    {
        Scanner in= new Scanner(System.in);
        int a,b,c,i;
        System.out.println("Enter 2 Numbers.");
        a=in.nextInt();
        b=in.nextInt();
        System.out.println("Before Interchange");
        System.out.println("a= "+a);
        System.out.println("b= "+b);
        for(i=1;i<=b;i++)
        {
            a++;
        }
        c=a;
        for(i=1;i<=b;i++)
        {
            c--;
        }
        b=c;
        for(i=1;i<=b;i++)
        {
            a--;
        }
        System.out.println("After Interchange");

OUTPUT