myshape.java

Java实现简单画图程序随机生成三种图形颜色等

import java.awt.Graphics;
import javax.swing.JFrame;

public abstract class MyShape extends Object
{
	private int x1,y1,x2,y2;
	
	public MyShape()
	{
       setX1(0);
       setY1(0);
       setX2(0);
       setY2(0);
	}
	
	public MyShape(int x1,int y1,int x2,int y2)
	{
	    setX1(x1);
        setY1(y1);
        setX2(x2);
        setY2(y2);
	}
	
	public void setX1(int x1)
	{
		this.x1=x1;
	}
	
	public void setY1(int y1)
	{
		this.y1=y1;
	}
	
	public void setX2(int x2)
	{
		this.x2=x2;
	}
	
	public void setY2(int y2)
	{
		this.y2=y2;
	}
	
	public int getX1()
	{
	    return x1;	
	}
		
	public int getY1()
	{
	    return y1;	
	}
		
	public int getX2()
	{
	    return x2;	
	}
		
	public int getY2()
	{
	    return y2;	
	}
	
	public abstract void draw(Graphics g);
	
}