myshape.java

金旭亮的java教案

// Java core packages
import java.awt.*;
// Java extension packages
import javax.swing.*;

public abstract class MyShape extends java.lang.Object
{
	protected int x1,y1;  //左上角坐标
	protected int x2,y2;  //右下角坐标
	//绘出自己
	public	abstract void Draw(Graphics g);
	
	public String toString()
	{
		return "("+x1+"'"+y1+")-("+x2+","+y2+")";
	}
	
	public MyShape()
	{
		x1=0;
		x2=0;
		y1=0;
		y2=0;
	}
	public MyShape(int x1,int y1,int x2,int y2)
	{
		this.x1=x1;
		this.x2=x2;
		this.y1=y1;
		this.y2=y2;
	}
	public void setLeftTop(int x,int y)
	{
		x1=x;
		y1=y;
	}
	public void setRightButtom(int x,int y)
	{
		x2=x;
		y2=y;
	}
	public int getX1()
	{
		return x1;
	}
	public int getX2()
	{
		return x2;
	}
	public int getY1()
	{
		return y1;
	}
	public int getY2()
	{
		return y2;
	}
	
	
	
}