subclass example

package com.concretepage;
class SuperClass {
void method1() {
System.out.println("i am method1 of superclass");
}
void method2() {
System.out.println("i am method2 of superclass");
}
void method3() {
System.out.println("i am method3 of superclass");
}
}
public class SubClass extends SuperClass {
void method1() {
System.out.println("i am method1 of subclass");
}
void method2() {
System.out.println("i am method2 of subclass");
}
void method3() {
System.out.println("i am method3 of subclass");
}
public static void main(String[] args) {
SuperClass superclass = new SuperClass();
superclass.method1();
superclass.method2();
superclass.method3();
}
}