Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;

public class Main extends JFrame {

    public Main() {
        super("Demonstrating FontMetrics");

        setSize(510, 210);
        setVisible(true);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    public void paint(Graphics g) {
        g.setFont(new Font("SansSerif", Font.BOLD, 12));
        FontMetrics fm = g.getFontMetrics();
        g.drawString("Current font: " + g.getFont(), 10, 40);
        g.drawString("Ascent: " + fm.getAscent(), 10, 55);
        g.drawString("Descent: " + fm.getDescent(), 10, 70);
        g.drawString("Height: " + fm.getHeight(), 10, 85);
        g.drawString("Leading: " + fm.getLeading(), 10, 100);

        Font font = new Font("Serif", Font.ITALIC, 14);
        fm = g.getFontMetrics(font);
        g.setFont(font);
        g.drawString("Current font: " + font, 10, 130);
        g.drawString("Ascent: " + fm.getAscent(), 10, 145);
        g.drawString("Descent: " + fm.getDescent(), 10, 160);
        g.drawString("Height: " + fm.getHeight(), 10, 175);
        g.drawString("Leading: " + fm.getLeading(), 10, 190);
    }

    public static void main(String args[]) {
        Main app = new Main();
    }
}