问如何使用javax.sound.sampled.*列出所有可用的(输入)端口？

EN

Mixer.Info[] mixers = AudioSystem.getMixerInfo();
for (Mixer.Info mixerInfo : mixers){
    System.out.println(mixerInfo);
}

Mixer.Info[] mixers = AudioSystem.getMixerInfo();
List<Line.Info> availableLines = new ArrayList<Line.Info>();
for (Mixer.Info mixerInfo : mixers){
    System.out.println("Found Mixer: " + mixerInfo);

    Mixer m = AudioSystem.getMixer(mixerInfo);

    Line.Info[] lines = m.getTargetLineInfo();

    for (Line.Info li : lines){
        System.out.println("Found target line: " + li);
        try {
            m.open();
            availableLines.add(li);                  
        } catch (LineUnavailableException e){
            System.out.println("Line unavailable.");
        }
    }  
}

System.out.println("Available lines: " + availableLines);