Thread: Java Speech API

Simple Java Speech API program always gives a null pointer exception on synthesizer.allocate()...why?? how can i use system voice in my java program using JSAPI ?

Originally Posted by Norm

Can you post a small program that compiles, execute and shows the problems.
Also copy the full text of the error messages and post it here.

import javax.speech.synthesis.*;
import java.util.Locale;



public class HelloWorld {


public static void main(String args[]) {


try {
// Create a synthesizer for English
Synthesizer synth = Central.createSynthesizer(
new SynthesizerModeDesc(Locale.ENGLISH));

// Get it ready to speak
synth.allocate();
synth.resume();

// Speak the "Hello world" string
synth.speakPlainText("Hello, world!", null);

// Wait till speaking is done
synth.waitEngineState(Synthesizer.QUEUE_EMPTY);

// Clean up
synth.deallocate();


} catch (Exception e) {
e.printStackTrace();
}

}

}



error.....

java.lang.NullPointerException
at HelloWorld.main(HelloWorld.java:22)

https://www.assembla.com/code/sonido...mat=raw&rev=13