myrect.java

能够运用java完成画图程序

import java.awt.*;
import java.awt.Graphics;


public class MyRect extends MyShape
{
		int width;
        int height;
		MyRect()
		{
			super();
			if(getX1()>getX2())
			width=getX1()-getX2();
			else
			width=getX2()-getX1();
			if(getY1()>getY2())
			height=getY1()-getY2();
			else
			height=getY2()-getY1();
		}
		
		MyRect(int x1,int y1,int x2,int y2)
		{
			super(x1,y1,x2,y2);
			if(getX1()>getX2())
			width=getX1()-getX2();
			else
			width=getX2()-getX1();
			if(getY1()>getY2())
			height=getY1()-getY2();
			else
			height=getY2()-getY1();
		}
		
		
		public void draw(Graphics g)	
		{
		
		g.drawRect(super.getX1(),super.getY1(),width,height)	;
		}
}