今天在网上乱逛，一不小心发现这个Google翻译，用Java调用的实例，把它拷来看了一下，挺不错的！
原文是英语和法语的互相翻译，我改成中文和英语的，但是好像中文翻译英文时有点问题，翻译不了！其他的都可以用的。
下面是一个截图：



源代码：

package test;

/*
* TranslatorFrame.java
*
* Created on 03 February 2008, 19:47
*/

import com.google.api.translate.Language;
import com.google.api.translate.Translate;
import java.awt.event.KeyEvent;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
*
* @author rich
*/
public class TranslatorFrame extends javax.swing.JFrame {
    
    /** Creates new form TranslatorFrame */
    public TranslatorFrame() {
        initComponents();
        setLocationRelativeTo(null);
    }
    
    private void translate() {
        try {
            String languageFrom = null;
            String languageTo = null;
            if (chineseToEnglishMenuItem.isSelected()) {
                languageFrom = Language.CHINESE_SIMPLIFIED;
                languageTo = Language.ENGLISH;
            } else if (englishToChineseMenuItem.isSelected()) {
                languageFrom = Language.ENGLISH;
                languageTo = Language.CHINESE_SIMPLIFIED;
            }
            toTextArea.setText(Translate.translate(fromTextArea.getText().trim(), languageFrom, languageTo));
        } catch (Exception ex) {
            Logger.getLogger(TranslatorFrame.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        buttonGroup1 = new javax.swing.ButtonGroup();
        jPanel2 = new javax.swing.JPanel();
        jScrollPane1 = new javax.swing.JScrollPane();
        fromTextArea = new javax.swing.JTextArea();
        jPanel3 = new javax.swing.JPanel();
        jScrollPane2 = new javax.swing.JScrollPane();
        toTextArea = new javax.swing.JTextArea();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        jMenuItem1 = new javax.swing.JMenuItem();
        jMenu3 = new javax.swing.JMenu();
        englishToChineseMenuItem = new javax.swing.JRadioButtonMenuItem();
        chineseToEnglishMenuItem = new javax.swing.JRadioButtonMenuItem();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Google翻译");
        getContentPane().setLayout(new javax.swing.BoxLayout(getContentPane(), javax.swing.BoxLayout.PAGE_AXIS));

        fromTextArea.setColumns(20);
        fromTextArea.setLineWrap(true);
        fromTextArea.setRows(5);
        fromTextArea.setWrapStyleWord(true);
        fromTextArea.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyPressed(java.awt.event.KeyEvent evt) {
                fromTextAreaKeyPressed(evt);
            }
        });
        jScrollPane1.setViewportView(fromTextArea);

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 309, Short.MAX_VALUE)
                .addContainerGap())
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 93, Short.MAX_VALUE)
                .addContainerGap())
        );

        getContentPane().add(jPanel2);

        toTextArea.setColumns(20);
        toTextArea.setEditable(false);
        toTextArea.setLineWrap(true);
        toTextArea.setRows(5);
        toTextArea.setWrapStyleWord(true);
        jScrollPane2.setViewportView(toTextArea);

        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 309, Short.MAX_VALUE)
                .addContainerGap())
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 93, Short.MAX_VALUE)
                .addContainerGap())
        );

        getContentPane().add(jPanel3);

        jMenu1.setText("文件");

        jMenuItem1.setText("退出");
        jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem1ActionPerformed(evt);
            }
        });
        jMenu1.add(jMenuItem1);

        jMenuBar1.add(jMenu1);

        jMenu3.setText("语言");

        buttonGroup1.add(englishToChineseMenuItem);
        englishToChineseMenuItem.setSelected(true);
        englishToChineseMenuItem.setText("英语 > 简体中文");
        jMenu3.add(englishToChineseMenuItem);

        buttonGroup1.add(chineseToEnglishMenuItem);
        chineseToEnglishMenuItem.setText("简体中文 > 英语");
        jMenu3.add(chineseToEnglishMenuItem);

        jMenuBar1.add(jMenu3);

        setJMenuBar(jMenuBar1);

        pack();
    }// </editor-fold>

    private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {
        System.exit(0);
    }

    private void fromTextAreaKeyPressed(java.awt.event.KeyEvent evt) {
        if (evt.getKeyCode() == KeyEvent.VK_ENTER) {
            translate();
            evt.consume();
        }
    }
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new TranslatorFrame().setVisible(true);
            }
        });
    }
    
    // Variables declaration - do not modify
    private javax.swing.ButtonGroup buttonGroup1;
    private javax.swing.JRadioButtonMenuItem englishToChineseMenuItem;
    private javax.swing.JRadioButtonMenuItem chineseToEnglishMenuItem;
    private javax.swing.JTextArea fromTextArea;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu3;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JTextArea toTextArea;
    // End of variables declaration
    
}



上面的代码用到了Google提供的一个jar，下载地址：
​​​google-api-translate-java-0.4.jar​​