java - My music player can play only one song? -

i tried make music player java. not test codes , try make music player own way. music player can play 1 song/sound. there textfield need write song file location. example can write epic.wav , play epic.wav, want listen asd.wav if write player still play epic.wav.

there code sound.java

import java.applet.applet; import java.applet.audioclip;    class sound {  public static final sound sound1 = new sound(form.soundstring);   private audioclip clip;  public sound(string filename){     try{         clip = applet.newaudioclip(sound.class.getresource(filename));     }catch(exception e){         e.printstacktrace();     } }  public void play(){     try{         new thread(){            public void run(){                clip.play();            }          }.start();     }catch(exception ex){         ex.printstacktrace();     }  } } 

and there code form.java

public class form extends javax.swing.jframe {   public form() {     initcomponents(); } public static string soundstring;   private sound sound;  @suppresswarnings("unchecked")    private void exitbuttonmouseclicked(java.awt.event.mouseevent evt) {                                         system.exit(0); }                                         private void minibuttonmouseclicked(java.awt.event.mouseevent evt) {                                             this.setstate(form.iconified); }                                         private void jbutton1mouseclicked(java.awt.event.mouseevent evt) {                                               soundstring = jtextfield1.gettext();      sound.sound1.play();      } 

so there codes... , want know why play 1 song.

thanks helping!