I want to use methods inside class.

Q: find the average of two number using classes and methods.

import java.util.*;


class aaa {

    int a,b,sum,avrg;

    void average() {

        System.out.println("The average is ="+avrg);

        avrg=(sum/2);

    }
}


class ave {

    public static void main(String args[]){

        aaa n=new aaa();

        Scanner m=new Scanner(System.in);

        System.out.println("write two number");

        n.a=m.nextInt();

        n.b=m.nextInt();

        n.average();

    }

}