95 lines
4.2 KiB
HTML
95 lines
4.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<html>
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<head>
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<title>Building an Audio CD Player, Listing 2</title>
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</head>
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<body bgcolor="#FFFFFF" text="000000">
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<p><HR> <P>
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<h3>Listing 1. Jcd.java</h3>
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<p><HR> <P>
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<pre>
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package Jcd; // 1
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/** 2
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Jcd - Java CD Audio Player 3
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Michael Hamilton (michael@actrix.gen.nz). 4
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All rights reserved. See the README for details
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*/ // 6
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import java.io.*; // 8
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import Jcd.Drive; // 10
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public class Jcd { // 12
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public static void main(String[] args) // 14
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{ // 15
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Drive cd_drive = new Drive( // 16
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"/dev/cdrom",
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"native/ix86-Linux/Jcd_Drive.so", // 17
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0); // 18
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DataInputStream cmd_stream =
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new DataInputStream(System.in); // 19
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String cmd; // 20
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try { // 22
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System.out.println(
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"Enter: info play stop pause resume eject");
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for (cmd = cmd_stream.readLine(); // 26
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cmd.compareTo("exit") != 0; // 27
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cmd = cmd_stream.readLine()) { // 28
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try { // 30
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if (cmd.compareTo("play") == 0) { // 31
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cd_drive.play(1); // 32
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} // 33
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else if (cmd.startsWith("goto")) { // 34
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try { // 35
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cd_drive.play(Integer.parseInt(
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cmd.substring(4).trim())); // 37
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}
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catch (NumberFormatException badnum) {
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System.out.println("Bad number " +
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badnum); // 39
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} // 40
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} // 41
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else if (cmd.compareTo("stop") == 0) {
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cd_drive.stop(); // 43
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} // 44
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else if (cmd.compareTo("pause") == 0) {
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cd_drive.pause(); // 46
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} // 47
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else if (cmd.compareTo("resume") == 0) {
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cd_drive.resume(); // 49
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} // 50
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else if (cmd.compareTo("eject") == 0) {
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cd_drive.eject(); // 52
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} // 53
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else if (cmd.compareTo("info") == 0) {
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System.out.println("CDDB ID = " +
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cd_drive.cddbID());
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System.out.println("Num Tracks = " +
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cd_drive.numberOfTracks());
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System.out.println("End address= " +
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cd_drive.cdEndAddress());
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System.out.println(""); // 58
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System.out.println("Track = " +
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cd_drive.currentTrack());
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System.out.println("Index = " +
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cd_drive.currentIndex());
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System.out.println("Address = " +
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cd_drive.currentAddress());
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System.out.println("Trk address= " +
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cd_drive.trackAddress());
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System.out.println("Trk length = " +
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cd_drive.trackLength());
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} // 65
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} // 66
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catch (DriveException drive_problem) {
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System.out.println("Exception: " +
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drive_problem); // 68
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} // 69
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System.out.println("Enter:"); // 70
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} // 71
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} // 72
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catch (IOException cmd_exception) { // 73
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} // 74
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} // 75
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} // 76
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</pre>
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</body>
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</html>
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