package com.ex4;

public class Table extends Sobject{
	private double width;   //宽度
	private double length;  //长度
	private double height;	//高度
	
	//如果该类不写构造方法，系统会自动为 Table添加一个无参数的构造方法
	//在这个无参构造方法中，会自动调用Sobject类中的无参数的构造方法
//	public Table() {
//		super();
////		super("abc",34.5);
//	}
//	
	public Table(String name,double weight,double width,double length,double height) {
		super(name, weight);
		this.width=width;
		this.length=length;
		this.height=height;
		
	}
	public double area() {
		return width*length;
	}
	public void changeWeight(double w) {
		setWeight(w);
	}
}