JFrame 不会让我绘制字符串();

Question

我需要帮助，因为我正在尝试用Java编写游戏。当我发现它不会给 JFrame 画一根绳子时，我被阻止了。我已经尝试了几种方法来解决这个问题，并做了很多研究，但一无所获。这是代码：-俄勒冈州（主班）：

package com.lojana.oregon.client;
import java.awt.*;
import javax.swing.*;
import com.lojana.oregon.src.Desktop;
import com.lojana.oregon.src.Keyboard;
import com.lojana.oregon.src.Mouse;
import com.lojana.oregon.src.Paint;
public class Oregon extends JFrame {
    private static final long serialVersionUID = 1L;
    // Currently unused but there will be a use for it in the future
    public Desktop desktop;
    public String TITLE = "Oregon";
    public Oregon() {
        /* Window code */
        setTitle(TITLE);
        setSize(640, 640);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        /* Extra code for Window */
        addKeyListener(new Keyboard());
        addMouseListener(new Mouse());
    }
    public void paint(Graphics g) {
        Paint.paint(g);
    }
}

吉巴顿（绘画班）：

package com.lojana.oregon.src;
import java.awt.*;
public class GuiButton {
    public GuiButton(Graphics g, String text, Font font, int coordX, int coordY,
            int textX, int textY, int width, int height) {
        Color border = Color.gray;
        Color fill = Color.white;
        Color textColor = Color.black;
        Stroke borderSize = new BasicStroke(8);
        g.setColor(border);
        ((Graphics2D) g).setStroke(borderSize);
        g.drawRect(coordX, coordY, width, height);
        g.setColor(fill);
        g.fillRect(coordX, coordY, width, height);
        g.setColor(textColor);
        g.setFont(font);
        g.drawString(text, textX, textY);
    }
}

GuiMainMenu （使用 GuiButton 文件的文件）：

package com.lojana.oregon.src;
import java.awt.*;
public class GuiMainMenu {
    public static void paint(Graphics g) {
        new GuiButton(g, "Start Game", new Font("Arial", Font.BOLD, 20), 60, 80, 20, 20, 240, 40);
    }
}

如果您知道如何修复它，请发表评论。非常感谢:)

Answer 1

Swing 程序应该覆盖paintComponent(Graphics g)而不是paint(Graphics g)并直接覆盖JFrame。有关详细信息，请参阅此文章：http://java.sun.com/products/jfc/tsc/articles/painting/

此外，最好覆盖添加到（内容窗格）JFrame的JPanel的paintComponent，而不是JFrame本身，因为您要绘制到此内容窗格中。有关详细信息，请参阅本教程：http://docs.oracle.com/javase/tutorial/uiswing/components/toplevel.html