Microphone.java 文件源码

/**
 * Gets the Mixer to use. Depends upon selectedMixerIndex being defined.
 *
 * @see #newProperties
 */
private Mixer getSelectedMixer() {
    if (selectedMixerIndex.equals("default")) {
        return null;
    } else {
        Mixer.Info[] mixerInfo = AudioSystem.getMixerInfo();
        if (selectedMixerIndex.equals("last")) {
            return AudioSystem.getMixer(mixerInfo[mixerInfo.length - 1]);
        } else {
            int index = Integer.parseInt(selectedMixerIndex);
            return AudioSystem.getMixer(mixerInfo[index]);
        }
    }
}