Untitled

public class Test{
    
	public static void main(String[] args) {
		Rectangle R1 = new Rectangle();
		R1.setLength(4);
		R1.width = 3;
		R1.display();
		R1.calculateArea();
		Rectangle R2 = new Rectangle(5,4);
		System.out.println(R2.width);
		R2.getWidth();
		R2.calculateArea();
	}
}