Olá meus amigos estou com dificuldades de trabalhar com o pacote javax.sound.midi.*;
import javax.sound.midi.*;
public class MiniMiniMusicApp {
public static void main(String[] args){
try{
Sequencer player = MidiSystem.getSequencer();
player.open();
Sequence seq = new Sequence(Sequence.PPQ, 4);
Track track = seq.createTrack();
ShortMessage a = new ShortMessage();
a.setMessage(144,1,44,100);
MidiEvent noteOn = new MidiEvent(a, 1);
track.add(noteOn);
ShortMessage b = new ShortMessage();
b.setMessage(128,1,44,100);
MidiEvent noteOff = new MidiEvent(b, 16);
track.add(noteOff);
player.setSequence(seq);
player.start();
}catch (Exception ex){
ex.printStackTrace();
}
}
}
O erro:
Exception in thread “main” java.lang.UnsatisfiedLinkError: init_
at gnu.javax.sound.midi.alsa.AlsaMidiDeviceProvider.init_(libgcj.so.10)
at gnu.javax.sound.midi.alsa.AlsaMidiDeviceProvider.(libgcj.so.10)
at java.lang.Class.initializeClass(libgcj.so.10)
at java.lang.Class.newInstance(libgcj.so.10)
at gnu.classpath.ServiceProviderLoadingAction.run(libgcj.so.10)
at java.security.AccessController.doPrivileged(libgcj.so.10)
at gnu.classpath.ServiceFactory$ServiceIterator.loadNextServiceProvider(libgcj.so.10)
at gnu.classpath.ServiceFactory$ServiceIterator.(libgcj.so.10)
at gnu.classpath.ServiceFactory.lookupProviders(libgcj.so.10)
at gnu.classpath.ServiceFactory.lookupProviders(libgcj.so.10)
at gnu.classpath.ServiceFactory.lookupProviders(libgcj.so.10)
at javax.sound.midi.MidiSystem.getMidiDeviceInfo(libgcj.so.10)
at javax.sound.midi.MidiSystem.getSequencer(libgcj.so.10)
at MiniMiniMusicApp.main(MiniMiniMusicApp.java:8)
Se alguem puder dar uma forcinha!!!Obrigaduuu.