Java Program using abstract class and method

In this program, You will learn how to implement abstract class and method in java.

abstract class First { 
   abstract void msg(); 
}

Example: How to implement abstract class and method in java

abstract class First {
    abstract void msg();
}

class Main extends First {

    void msg() {
        System.out.println("msg is called here");
    }

    public static void main(String args[]) {
        Main st = new Main();
        st.msg();
    }
}

Output:

msg is called here