// purpose: show assignment implications

public class SwappingValues {

    // method main(): program starting point
    public static void main( String[] args ) {

        // define two variables to try out some manipulation
        int x = 10;
        int y = 20;

        System.out.println( "x and y before manipulation" );
        System.out.println( "   x = " + x );
        System.out.println( "   y = " + y );
        System.out.println();

        // what happens when we try the following
        y = x;
        x = y;

        System.out.println( "x and y after manipulation" );
        System.out.println( "   x = " + x );
        System.out.println( "   y = " + y );
        System.out.println();
        System.out.println();




















































        /*
        // define two more variables to try out some manipulation
        int a = 10;
        int b = 20;

        System.out.println( "a and b before manipulation" );
        System.out.println( "   a = " + a );
        System.out.println( "   b = " + b );
        System.out.println();

        // what happens when we try the following
        int remember = a;
        a = b;
        b = remember;

        System.out.println( "a and b after manipulation" );
        System.out.println( "   a = " + a );
        System.out.println( "   b = " + b );
        */


    }
}