JENDELA INFORMATIKA ID

A.INPUT public class SuperClass{ public SuperClass() { System.out.println("Ini konstruktor milik SuperClass"); } public void methodSuperClass() { System.out.println("Ini method milik SuperClass"); } } OUTPUT B.INPUT public class SubClass extends SuperClass { public SubClass() { super(); } public void methodSubClass() { super.methodSuperClass(); } } OUTPUT C.INPUT public class DemoInheritance { public static void main(String[] args) { SubClass sc = new  SubClass(); sc.methodSubClass(); } }public class DemoInheritance { public static void main(String[] args) { SubClass sc = new  SubClass(); sc.methodSubClass(); } } OUTPUT Ini konstruktor milik SuperClass Ini method milik SuperClass D.INPUT public class Persegi { private double panjang;                //atribut yang dis...