import javax.speech.*;

  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();

    }

  }

}

This example illustrates the four basic steps which all speech synthesis applications must perform. Let's examine each step in detail.

Create: The Central class of javax.speech package is used to obtain a speech synthesizer by calling the createSynthesizer method. The SynthesizerModeDesc argument provides the information needed to locate an appropriate synthesizer. In this example a synthesizer that speaks English is requested.

Allocate and Resume: The allocate and resume methods prepare the Synthesizer to produce speech by allocating all required resources and putting it in the RESUMED state.

Generate: The speakPlainText method requests the generation of synthesized speech from a string.

Deallocate: The waitEngineState method blocks the caller until the Synthesizer is in the QUEUE_EMPTY state - until it has finished speaking the text. The deallocate method frees the synthesizer's resources.