如何创建一个矩形对象在Java中使用g。fillRect方法

I need to create a rectangle object and then paint it to the applet using paint(). I tried

我需要创建一个矩形对象，然后使用paint()将其绘制到applet中。我试着

Rectangle r = new Rectangle(arg,arg1,arg2,arg3);

Then tried to paint it to the applet using

然后试着把它涂到applet上

g.draw(r);

It didn't work. Is there a way to do this in java? I have scoured google to within an inch of its life for an answer, but I haven't been able to find an answer. Please help!

它没有工作。在java中有这样的方法吗?我搜索了谷歌，在它生命的一英寸之内找到了答案，但是我还没找到答案。请帮助!

2 个解决方案

#1

Try this:

试试这个:

public void paint (Graphics g) {    
    Rectangle r = new Rectangle(xPos,yPos,width,height);
    g.fillRect(r.getX(), r.getY(), r.getWidth(), r.getHeight());  
}

[edit]

(编辑)

// With explicit casting
public void paint (Graphics g) {    
        Rectangle r = new Rectangle(xPos, yPos, width, height);
        g.fillRect(
           (int)r.getX(),
           (int)r.getY(),
           (int)r.getWidth(),
           (int)r.getHeight()
        );  
    }

#2

You may try like this:

你可以尝试这样的:

import java.applet.Applet;
import java.awt.*;

public class Rect1 extends Applet {

  public void paint (Graphics g) {
    g.drawRect (x, y, width, height);    //can use either of the two//
    g.fillRect (x, y, width, height);
    g.setColor(color);
  }

}

where x is x co-ordinate y is y cordinate color=the color you want to use eg Color.blue

x是x坐标y是y cordinate颜色=你想用的颜色如蓝色

if you want to use rectangle object you could do it like this:

如果你想使用矩形对象你可以这样做:

import java.applet.Applet;
import java.awt.*;

public class Rect1 extends Applet {

  public void paint (Graphics g) {    
    Rectangle r = new Rectangle(arg,arg1,arg2,arg3);
    g.fillRect(r.getX(), r.getY(), r.getWidth(), r.getHeight());
    g.setColor(color);
  }
}

#1