I have packed all the class files and resources as a jar but on execution the sound files wont play. My package structure is:
+project
|_classes
|_ _*.class
An alternate theory to those already presented. Often successful getResource() calls depend on the class loader instance that is called to locate them. For this reason, I would recommend to use an instance of a user defined object, from which to call getResource(). E.G.
// Sanity check
System.out.println("The value of 'file' is: " + file);
// Presuming kidsClassRoom1 is an instance of kidsClassRoom
AudioInputStream inputStream = AudioSystem.
getAudioInputStream(
kidsClassRoom1.
getClass().
getResourceAsStream("/resources/"+file));
You might also note that snippet uses the prefix of "/" for the resource. Contrary to what others are saying, I am confident that means 'from the root' of the resource path, in whatever Jar on the run-time class-path it is found. Leaving the '/' or '../' out will have the class loader searching for the resource in a sub-path of the class that this is occurring in.
Of course - make sure the Wav ends up in the Jar! Copy/rename the .jar to a .zip and double click it is the 'quick & dirty' way to examine the archive contents on Windows.