[英]How To Play A Beep/Alert Sound On Mac In Java
我试过同时使用
Toolkit.getDefaultToolkit().beep();
和
System.out.println("\\007");
而且实际上都没有播放声音。 我尝试在我的IDE(CodeRunner 2)和终端中运行该代码,以查看是否有所不同,但没有产生任何变化。
如果有人知道执行此操作的另一种方法或为何行不通,请告诉我
谢谢!
或者您可以尝试将其与JNA-Library一起使用:
import com.sun.jna.platform.win32.Kernel32;
import com.sun.jna.Native;
import com.sun.jna.Library;
interface JnaTests extends Library {
public boolean Beep(int FREQUENCY , int DURATION );
static Kernel32 kernel32 = (Kernel32) Native.loadLibrary("kernel32", Kernel32.class);
static void startBeep() throws InterruptedException {
kernel32.Beep(1200, (5000));
Thread.sleep(50);
}
}
package com.sun.jna.platform;
import com.sun.jna.Library;
public class win32 {
private static class MSG implements User32 {
public MSG() {
}
}
public interface Kernel32 extends Library { // ... (lines deleted for clarity) ...
boolean Beep(int frequency, int duration);
//int GetLogicalDrives(); // ... (lines deleted for clarity) ... }
}
public interface User32 extends Library { // ... (lines deleted for clarity) ...
// ... (lines deleted for clarity) ... }
}
}
Perhaps you could use the midi class too:
Sequencer sequencer = MidiSystem.getSequencer();
sequencer.open();
Sequence sequence = new Sequence(Sequence.PPQ,4);
Track track = sequence.createTrack();
ShortMessage a = new ShortMessage();
a.setMessage(144,9,56,100);
MidiEvent event = new MidiEvent(a, 1);
track.add(event);
sequencer.setSequence(sequence);
sequencer.start();
Thread.sleep(500);
sequencer.close();
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