/** This program demonstrates the methods in the SuperClass3 and SubClass3 classes. */ public class ShowValueDemo { public static void main(String[] args) { // Create a SubClass3 object. SubClass3 myObject = new SubClass3(); myObject.showValue(10); // Pass an int. myObject.showValue(1.2); // Pass a double. myObject.showValue("Hello"); // Pass a String. } }