Interface with Rectangle

 import java.util.Scanner;

interface Area {

 void arr();

 void dimension();

}

class Rectangle implements Area {

 int length, breadth;

 public void dimension() {

 Scanner sc = new Scanner(System.in);

 System.out.print("Enter length: ");

 length = sc.nextInt();

 System.out.print("Enter breadth: ");

 breadth = sc.nextInt();

 }

 public void arr() {

 int area = length * breadth;

 System.out.println("Area: " + area);

 }

 public static void main(String[] args) {

 Rectangle r = new Rectangle();

 r.dimension();

 r.arr();

}

}

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