这是代码,大佬们帮看一下,谢谢啦{:1_919:} {:1_919:} [Java] 纯文本查看 复制代码
package FirstHeadJava;
import javax.sound.midi.*;
public class MiniMusicCmdLine {
public static void main(String[] args) {
MiniMusicCmdLine mini = new MiniMusicCmdLine();
if(args.length<2){
System.out.println("Don't forget the instrument and note args");
}else {
int instrument = Integer.parseInt(args[0]);
int note = Integer.parseInt(args[1]);
mini.play(instrument,note);
}
}
public void play(int instrument ,int note ){
try{
Sequencer player = MidiSystem.getSequencer();
player.open();
Sequence seq = new Sequence(Sequence.PPQ, 4);
Track track = seq.createTrack();
MidiEvent event = null;
ShortMessage first = new ShortMessage();
first.setMessage(192,1,instrument,0);
MidiEvent changeInstrument = new MidiEvent(first,1);
track.add(changeInstrument);
ShortMessage a = new ShortMessage();
a.setMessage(144,1,note,100);
MidiEvent noteOn = new MidiEvent(a,1);
track.add(noteOn);
ShortMessage b = new ShortMessage();
b.setMessage(128,1,note,100);
MidiEvent noteOff = new MidiEvent(b,16);
track.add(noteOff);
player.setSequence(seq);
player.start();
}catch (Exception ex){
ex.printStackTrace();
}
}
}
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