PPT Slide

/* in class SwapTester’s main method (cont’d) . . . */

String a, b, c;

a = "hello";

b = new String ("hello");

c = b;

System.out.println ("a=" + a + " b=" + b + " c=" + c);

System.out.println ("a==hello is " + (a=="hello"));

System.out.println ("b==hello is " + (b=="hello"));

System.out.println ("a==b is " + (a==b));

System.out.println ("a.equals(b) is " + (a.equals(b)));

System.out.println ("b==c is " + (b==c));

System.out.println ("b.equals(c) is " + (b.equals(c)));

System.out.println ();

a=hello b=hello c=hello

a==hello is true

b==hello is false

a==b is false

a.equals(b) is true

b==c is true

b.equals(c) is true

Output