rectangle.java

java编程的一些编程习题 内附源码答案。。。。。。。系列三

//创建Rectangle类
class Rectangle
{  	
  private int x;
  private int y;
  private int width;
  private int length;
  
  public Rectangle()
  {
		x=40;
		y=30;
		width=100;
		length=150;
	}
	public Rectangle(int initX,int initY,int initWidth,int initLength)
	{
		x=initX;
		y=initY;
		width=initWidth;
		length=initLength;
	}
	
	public void setPosition(int newX,int newY)
	{
		x=newX;
		y=newY;
	}
	
	 public String  toString()
	 {
	 	 String s=new String("矩形的位置是："+"("+x+","+y+")"+"宽度是："+width+"长度是："+length);	
	   return s;
	 }
}