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prabhuallaFlag for India

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How to translate from one language to another using java

I want to write a core java program that converts the data from one langualge to another language.for example
English to French,french to German, etc..
for this i have tried with Google Translator API for Java, but this is commertial, i am not able to run my program with out HttpReferrer and Key.
And i downloaded the webtranslator api, but i dont know how to use. So kindly provide the example to use this api.

or else, kindly provide, if you have any other possible solution.
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smeghammer
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Hi,

Does the package you indicate have API documentation/javadocs? Can you provide a URL to the package download?
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ASKER

i think you are asking about Google Translator API.

GoogleAPI.setHttpReferrer(/*your http referrere*/);
 GoogleAPI.setKey(/*key*/); String text =
Translate.DEFAULT.execute("HELLO", Language.ENGLISH,
Language.GERMAN); System.out.println(text);

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i downloaded the jar from

http://www.java2s.com/Code/Jar/g/Downloadgoogleapitranslatejava095jar.htm
Hi,

You stated you did not want to use the Google API. The way your post was phrased indicated that "And i downloaded the webtranslator api" - which to me said that you downloaded a non-Google API. I did a quick search for 'webtranslator api java', and there appear to be quite a few out there. e.g.:


My question was basically which one did you pick?
Thanks for your response smeghammer.

Yes i tried the below one.

http://sourceforge.net/projects/webtranslator/files/JavaWebTranslator-0.2a/Java%20WebTranslator%200.2a%20%28Alpha%20Release%29/

but i don't know how to use this, Kindly provide any sample program to use this api.
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smeghammer
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Here is a better GUI based example. I borrowed the tutorial from here as the basis for the GUI.

The download includes a complete source development package ('WebTranslator-all-0.2a.zip'). This can be unzipped and imported as a new project into Eclipse.  

I have a single class file and a reference to the main WebTranslator-bin-0.2a.jar file. I made a very basic textarea, language dropdown, button and associated listener. The listener just takes the value in the textarea and submits it with the appropriate to/from languages. The translated result is then placed in the textarea:
package guiTest;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JComboBox;
import javax.swing.JButton;
import javax.swing.JLabel;

import java.awt.BorderLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.Locale;
import java.util.ResourceBundle;

//this is the key import for the translation package:
import com.javanetworkframework.rb.util.AbstractWebTranslator;

public class app
{
  public static void main(String[] args)
 {
      new app();
  }

  public app()
  {
      JFrame guiFrame = new JFrame();
      
      //make sure the program exits when the frame closes
      guiFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      guiFrame.setTitle("Example GUI");
      guiFrame.setSize(300,250);
    
      //This will center the JFrame in the middle of the screen
      guiFrame.setLocationRelativeTo(null);
      
      //Options for the JComboBox 
      String[] toLanguage = {"fr", "de", "es"};
      
      //The first JPanel contains a JLabel and JCombobox
      final JPanel comboPanel = new JPanel();
      final JLabel comboLbl = new JLabel("Select 'to' language:");
      final JComboBox<Object> toLanguages = new JComboBox<Object>(toLanguage);
      
      comboPanel.add(comboLbl);
      comboPanel.add(toLanguages);

      final javax.swing.JTextArea textArea = new javax.swing.JTextArea();
      
      JButton transLateBtn = new JButton( "Translate!");
      
      //The ActionListener class is used to handle the
      //event that happens when the user clicks the button.
      //As there is not a lot that needs to happen we can 
      //define an anonymous inner class to make the code simpler.
      transLateBtn.addActionListener(new ActionListener()
      {
          @Override
          public void actionPerformed(ActionEvent event)
          {
                //submit the text in the textarea to an instance of the translator:
     		Locale srcLoc = new Locale("en");  //hardcoded in this example
    		Locale dstLoc = new Locale(toLanguages.getSelectedItem().toString()); //eg fr, de, es
    		AbstractWebTranslator res = (AbstractWebTranslator) ResourceBundle.getBundle(
    				"com.javanetworkframework.rb.com.freetranslation.FreeTranslationTranslatorRB",
    				dstLoc);
    		String output = "";
    		String textToTranslate = textArea.getText();
    		output = res.getString(textToTranslate, srcLoc);
    		textArea.setText(output);
          }
      });
      
      //The JFrame uses the BorderLayout layout manager.
      guiFrame.add(comboPanel, BorderLayout.NORTH);
      guiFrame.add(textArea,BorderLayout.CENTER);
      guiFrame.add(transLateBtn,BorderLayout.SOUTH);
      
      //make sure the JFrame is visible
      guiFrame.setVisible(true);
  }
} 

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Thanks smeghammer,

i tried the below code as u mentioned  in above.

	Locale srcLoc = new Locale("en");
		Locale dstLoc = new Locale("es"); //try fr, de, es
		AbstractWebTranslator res = (AbstractWebTranslator) ResourceBundle.getBundle("com.javanetworkframework.rb.com.freetranslation.FreeTranslationTranslatorRB",dstLoc);
		String output = null;
		String textToTranslate = "hello";
		output = res.getString(textToTranslate, srcLoc);
		System.out.println(output);

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but i am getting one applet, And i have choosen Allow, but i am not getting output, the applet keep on running, it is not giving any output.

please help me.
log file attached for your reference.
log
Hi,

You did not mention applet in your original post. The example I provided is for a standard GUI application.

However, it could easily be converted to an applet or a command-line utility. The code I provided simply demonstrates how to use the LIBRARY, and not how to build an application or applet around it.

As I noted above, you need to use the ENTIRE example Eclipse project, NOT just the code I provided. That is just the front-end on top of the translation library. You originally asked this
And i downloaded the webtranslator api, but i dont know how to use. So kindly provide the example to use this api

And that is what I provided. Other posts by yourself suggest you are an experienced java programmer and I am not going to describe the basics of building an applet or how to use Eclipse - there are plenty of resources for that out there.

So:

Did you import the entire sample project ('WebTranslator-all-0.2a.zip')? into Eclipse
If so ,did you successfully run this sample project before using my code?
Did you create a new project and reference the webtranslator JAR? [build path/add external archives/]
Did you add the import statement to actually use the webtranslator package?
I am certainly not a java guru, so the first thing I did when I looked at this was to import the example project into Eclipse and figure out how it worked by running the PROVIDED example code and tracing through what happens. It was only when I had worked out roughly what was going on that I created my own simple project that used the library.
Thanks
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Janki Gadhiya

Hi, smeghammer

I have used your code for language translation in my simple java program, but my execution gets stuck at this line "output += textToTranslate + " --> " + res.getString(textToTranslate, srcLoc);"

I think "res.getString(textToTranslate, srcLoc);"  is not returning any thing.

Can you suggest me any solution ??