Abstract

package abstractAndConcreet;
 
abstract class Base{
	
	
	void fun() {
		
		System.out.println("The conatructor of Abstract class");
	}
	
	
	public abstract void  method();
}

	 class Derived extends Base{
		 
		 
		 String name;
		 Derived(String name){
			 this.name=name;
			 
			 
		 }
		
		
		public void method() {
			
			
			System.out.println("Method of Derived " + name);
			
		}
		
		
	}
	
	 class dev extends Base{
		 
		 int number ;
		 
		 dev(int number){
			 
			 this.number=number;
		 }
		
		public void method() {
			
			
			
			System.out.println("Method of Dev " + number);
		}
	}


public class abstract2 {

	public static void main(String[] args) {
		
		Base obj= new Derived("Hamza");
		Base obj2= new dev(24);
		obj.method();
		obj2.method();
		obj2.fun();
	
	

	}

}