在Java的GUI编程中，如何显示不同字体的文字？

以下示例演示如何使用Font类的setFont()方法显示不同字体的文本。

package com.yiibai;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class DisplayTextFont extends JPanel {
    String[] type = { "Serif", "SansSerif" };
    int[] styles = { Font.PLAIN, Font.ITALIC, Font.BOLD, Font.ITALIC + Font.BOLD };
    String[] stylenames = { "Plain", "Italic", "Bold", "Bold & Italic" };

    public void paint(Graphics g) {
        for (int f = 0; f < type.length; f++) {
            for (int s = 0; s < styles.length; s++) {
                Font font = new Font(type[f], styles[s], 18);
                g.setFont(font);
                String name = type[f] + " " + stylenames[s];
                g.drawString(name, 20, (f * 4 + s + 1) * 20);
            }
        }
    }

    public static void main(String[] a) {
        JFrame f = new JFrame();
        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        f.setContentPane(new DisplayTextFont());
        f.setSize(400, 400);
        f.setVisible(true);
    }
}

上述代码示例将产生以下结果。

示例-2

以下是以不同字体显示文本的另一示例：

package com.yiibai;

import java.awt.*;
import javax.swing.*;

public class DisplayTextFont2 extends JComponent {
    String[] dfonts;
    Font[] font;
    static final int IN = 15;

    public DisplayTextFont2() {
        dfonts = GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
        font = new Font[dfonts.length];
    }

    public void paintComponent(Graphics g) {
        for (int j = 0; j < dfonts.length; j += 1) {
            if (font[j] == null) {
                font[j] = new Font(dfonts[j], Font.PLAIN, 16);
            }
            g.setFont(font[j]);
            int p = 15;
            int q = 15 + (IN * j);
            g.drawString(dfonts[j], p, q);
        }
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Different Fonts");
        frame.getContentPane().add(new JScrollPane(new DisplayTextFont2()));
        frame.setSize(350, 650);
        frame.setVisible(true);
    }
}

上述代码示例将产生以下结果。

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