fontdemo.java

Java 程序设计源码 只提供了部分

import javax.swing.*;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Color;
import java.awt.Graphics;

public class FontDemo extends JFrame {
  public FontDemo() {
    super("显示字体示例");
    setSize(240, 200);
    this.getContentPane().add(new FontPanel());

    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }

  public static void main(String[] args) {
    FontDemo fd = new FontDemo();

    fd.setVisible(true);
  }
}

class FontPanel extends JPanel {
  public void paint(Graphics g) {
    super.paint(g);

    int x = 10, y = 20;

    String strFirst = "Welcome to";
    String strSecond = " Java";
    String strThird = "World";

    String strNextLine = "Font example";
    this.setBackground(Color.white);

    g.setColor(Color.black);
    g.setFont(new Font("宋体", Font.PLAIN, 20));

    g.drawString(strFirst, x, y);

    FontMetrics fm = g.getFontMetrics();

    x += fm.stringWidth(strFirst);

    g.setFont(new Font("Times New Roman",Font.PLAIN, 20));
    g.setColor(Color.red);

    g.drawString(strSecond, x, y);

    g.setColor(Color.black);
    g.setFont(new Font("宋体", Font.PLAIN, 20));
    x += fm.stringWidth(strSecond);

    g.drawString(strThird, x, y);

    y += fm.getHeight();

    x = 10;
    g.drawString(strNextLine, x, y);
  }
}