public class Zoo {
    
    public static void main(String[] args){
       
        
        Father2 father=new Son2();
        System.out.println(father.name);
        System.out.println(father.greeting());
        
    }
}



class Father2{
    String name="Father";
    String getName(){
        return name;
    }
    String greeting(){
        return "calss father";
    }
}


class Son2 extends Father2{
    String mame="son";
    String greeting(){
        return "class son";
    }
    
    
}