package cn.edu.bjut.chapter4;

public class Rectangle {
	protected int length, width;

	public Rectangle(int length, int width) {
		this.length = length;
		this.width = width;
	}
	public int area() {
		System.out.println(this.getClass().getName());
		return (length * width);
	}
	public int perimeter() {
		System.out.println(this.getClass().getName());
		return (2 * (length + width));
	}
}