Program to Demonstrate Inheritance in Java

Instructions:
1.)Save this program to a file and name it Inheritance.java

import javax.swing.JOptionPane;
class SuperClass //The Superclass
{
 String str="We Got Copieeed!!!";
 void func()
 {
  JOptionPane.showMessageDialog(null, str); //Prints the string 'str' in a window.
 }
}
 
class SubClass extends SuperClass //The SubClass inheriting SuperClass
{
}
 
public class Inheritance {
 
 public static void main(String[] args)  //Our main
 {
  SubClass sub1= new SubClass(); //SubClass Object Initialization.
  sub1.func(); //Call to function of SuperClass via object of the Subclass
 }
 
}

Tested in compilers: Eclipse and Command Line.