good.java

package javatest;
public class good{
 public static void main (String[] args) {
 ovverload o=new ovverload();
 ovverride ob= new ovverride();
 encap e =new encap();
 e.setNumber(999);
 System.out.println("encap value "+e.getNumber());
 o.num(8);
 o.num(8,9);
 ob.num(8);
 
 }
}
class encap{// alt + shift +s for getter and setter or go to source for getter and setter
	private int number;
 public void setNumber(int a) {
 number = a;
 }
 public int getNumber() {
 return number;
 }

}

class ovverload{
 public void num(int a){
 System.out.println("overloading "+a);
 }
 public void num(int a, int b){
 System.out.println("overloading "+a*b);
 }
}
class ovverride extends ovverload{
 public void num(int a){
 System.out.println("overriding "+a*10);
 }
}