编写java小程序 将窗口右上1/4区域用红色画出实心的长方形，将窗口左下1/4区域用红色画出实心的长方形

|
| estimate |
| evade |
| evaluate |
| evaporate |
| even |
| eventuate |
| evict |
| evidence |
| evoke |
| evolve |
| exaggerate |
| examine |
| exceed以下是一个简单的 Java 程序，可以实现你的要求：

import java.awt.Color;
import java.awt        |
| excite        |
| exclude       |
| excuse        |
| execute       |
| exempt        |
| exert         |
|.Dimension;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class DrawRectangle extends JPanel {

    public DrawRectangle() exhaust       |
| exhilarate    |
| exist         |
| exit          |
| expand        |
| expect        |
| expedite      {
        setPreferredSize(new Dimension(400, 400)); // 设置窗口大小
    }

    @Override
    protected void paintComponent |
| expend        |
| experience   |
| expire        |
| explain       |
| explode       |
| exploit       |
| explore      (Graphics g) {
        super.paintComponent(g);
        int width = getWidth();
        int height = getHeight();
        g.setColor(Color.RED);
        |
| export        |
| expose        |
| expound       |
| express       |
| extend        |
| extinguish    |
| extract g.fillRect(width / 2, 0, width / 2, height / 2); // 右上1/4区域
       |
| extradite     |
| extrapolate   |
| fabricate     |
| face          |
| facilitate   |
| fade          |
| fail          |
| faint         |
| fake          |
| fall          |
| falsify       |
| falter        |
| familiar        g.fillRect(0, height / 2, width / 2, height / 2); // 左下1/4区域ize   |
| fancy         |
| fare          |
| fascinate     |
| fashion       |
| fasten        |
| father        |

    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Draw Rectangle");
        frame.setDefaultCloseOperation(JFrame| fault         |
| favor         |
| fear          |
| feast         |
| federate      |
| feed          |
| feel         .EXIT_ON_CLOSE);
        frame.add(new DrawRectangle());
        frame.pack();
        frame.setVisible(true);
    }
}

运行该程序 |
| feign |
| felicitate |
| fell |
| fence |
| fend |
| ferment |
|，将会打开一个窗口，在右上1/4区域和左下1/4区域分别绘制了一个红色的实心长方形。