java - Why does this WAV file not play? It gives me a NullPointerException - 


package net.nitrocruze.mrpg.baseengine.music;  import java.io.file; import java.io.fileinputstream; import java.io.ioexception; import javax.sound.sampled.audioformat; import javax.sound.sampled.audioinputstream; import javax.sound.sampled.audiosystem; import javax.sound.sampled.clip; import javax.sound.sampled.dataline; import javax.sound.sampled.line; import javax.sound.sampled.lineunavailableexception;  public class cpsound implements runnable{     audioinputstream as1;     audioformat af;     clip clip1;     dataline.info info;     line line1;      public cpsound() {         thread soundthread;         soundthread = new thread(this, "sound");         soundthread.start();     }      public void play() {         try{             as1 = audiosystem.getaudioinputstream(new fileinputstream(new file("/res/music.wav")));             af = as1.getformat();             clip1 = audiosystem.getclip();             info = new dataline.info(clip.class, af);             line1 = audiosystem.getline(info);         }         catch(exception e)         {         }          if ( ! line1.isopen() )         {             try             {                 clip1.open(as1);             }             catch (exception e)             {               }             clip1.loop(clip.loop_continuously);             clip1.start();         }     }      public void run()     {         play();     } }

why not work? gives me nullpointerexception?

i found out why wasn't working! had put "/" before 'res/music.wav' caused file loading system think loading drive (eg c:/ f:/), there nothing before / thought loading null drive, cannot exist.


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