myline.java

创建一些形状类

/* 
 * File name: MyLine.java
 *
 * This file defines a MyLine class.
 *
 * Author: R. R. Gargeya
 * Date:   12 March 2000
 *
 * Distribution: This header should always be included.
 */

import java.awt.Graphics;

public class MyLine
{
    private int x1, y1, x2, y2;

    public MyLine()
    {
	x1 = 0;
	y1 = 0;
	x2 = 0;
	y2 = 0;
    }

    public MyLine(int x1, int y1, int x2, int y2)
    {
	this.x1 = x1;
	this.y1 = y1;
	this.x2 = x2;
	this.y2 = 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 void draw(Graphics g)
    {
	g.drawLine(x1, y1, x2, y2);
    }
}