java - Swing 图形用户界面 : drawString - How to set the font size of the String being displayed?

Question

我们都知道drawString方法可以这样使用:

import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JComponent;
import javax.swing.JFrame;

public class Driver {

    public static void main(String[] args) {
        JFrame frame = new JFrame("Frame Heading");
        frame.setSize(1000,500);
        myComponent comp = new myComponent();
        frame.add(comp);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
    }
}

class myComponent extends JComponent {
    public void paintComponent(Graphics g) {
        Graphics2D g2 = (Graphics2D) g;
        g2.drawString("Hello World", 300, 300);
    }
}

但是，我们如何调整显示字符串的字体大小呢？我想让它变大。

Answer 1

class myComponent extends JComponent {
    public void paintComponent(Graphics g) {
        Graphics2D g2 = (Graphics2D) g;
        int fontSize = 20;
        Font f = new Font("Comic Sans MS", Font.BOLD, fontSize);
        g2.setFont(f);
        g2.drawString("Hello World", 300, 300);
    }
}

您可以更改样式、大小和字体，因为您可能不想使用 Comic Sans。

另见 Graphics#setFont .