Using google translator server in Java application .
Download translator jar from google
http://google-api-translate-java.googlecode.com/files/google-api-translate-java-0.23.jar

Compile the program javac -cp google-api-translate-java-0.23.jar GoogleTranslateTest.java

Run the application ( Requires internet connection):

java -cp google-api-translate-java-0.23.jar;. GoogleTranslateTest

If you your machine is behind proxy server
java -DproxySet=true -Dhttp.proxyHost=ip -DproxyPort=port -cp google-api-translate-java-0.23.jar;. GoogleTranslateTest

import com.google.api.translate.Language;
import com.google.api.translate.Translate;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import javax.swing.JOptionPane;
public class GoogleTranslateTest {
  public static void main(String[] args) {
      while(true)
      {
          try {
              System.out.println("Enter any english word ( enter quit to exit): ");
              String englishText = GoogleTranslateTest.getConsoleReader().readLine();
              if ( englishText.equalsIgnoreCase("quit")) {
                  break;
              }
            
              String translatedText = Translate.translate(englishText, Language.ENGLISH, Language.FRENCH);
              //JOptionPane.showMessageDialog(null, String.format("English:%1$-20s  French: %2$-30s ",englishText,translatedText ));
              System.out.println(String.format("English:%1$-20s  French: %2$-30s ",englishText,translatedText ));
        } catch (Exception ex) {
          ex.printStackTrace();
        }
    }
  }

  public static BufferedReader getConsoleReader() {
        return new BufferedReader( new InputStreamReader( System.in));
    }
}