rectangle.java

还不错的java基本实例

/*
 * 创建日期 2006-1-31
 *
 * TODO 要更改此生成的文件的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
package ch6;
public class Rectangle {
    private int x ;
    private int y ;
    private int width ;
    private int height ;

        
    public  Rectangle(){
        this(5,10,50,25);        
    }
   
	public Rectangle(int myx, int myy,int mywidth,int myheight)
	{
		x=myx;
		y=myy;
		width=mywidth;
		height=myheight;
	}
	
	  public Rectangle(Point mypoint  , int mywidth , int myheight ){
                 x = mypoint.getX();
                y = mypoint.getY();
                width = mywidth;
                height = myheight;
	  }


    public void setX(int ax ){
        x = ax;
    } 
    public int getX() {
        return x;
    }

    public void setY(int ay){
        x = ay;
    }
    public int getY() {
        return y;
    }

    public void setWidth(int awidth ){
        width = awidth;
    }
    public int getWidth() {
        if (width > 0) 
            return width;
        else
            return 0;
    }

    public void setHeight(int aheight){
        height = aheight;
    }
    public int getHeight() {
        return height;
    }
    
    public int getArea()
	{
		 return width*height;
	}


    public void offset(int ax , int ay ){
        x = x + ax;
        y = y + ay;
    }
    
	
   
    
    public void Inflate(int inwidth,int inheight)
	{
		x=x-inwidth;
		y=y-inheight;
		height=height+2*inheight;
		width=width+2*inwidth;
	}
    
    public static void Inflate(Rectangle rec  , int inwidth , int inheight ){
        rec.x = rec.x - inwidth;
        rec.y = rec.y - inheight;
        rec.height = rec.height + 2 * inheight;
        rec.width = rec.width + 2 * inwidth;
    }
    
    public String print()
	{  	String str;
		str="X="+x+", Y="+y+"\n";
		str+="Width="+width+"   Height="+height+"\n";
		str+=" Area="+ getArea()+"\n";
		return str;
	}
}