Abstract class using Java in NetBeans
abstract class Base {
Base(){
System.out.println("Base Constructor Called");
}
abstract void fun();
}
class Derived extends Base {
Derived(){
System.out.println("Derived Constructor Called");
}
void fun(){
System.out.println("Derived fun() called");
}
}
public class p29_abstractclass {
public static void main(String args[]){
Derived d = new Derived();
}
}