介绍一个功能，可以把汉语转化成拼音，包括全拼和首字母，甚至可以带音调。
大家可以去http://pinyin4j.sourceforge.net/ 看看，下载支持jar包：pinyin4j-2.5.0.jar。
我也是看的demo，大家可以把下面的代码运行看看。
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package pinyin;
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import java.awt.BorderLayout;
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import java.awt.Dimension;
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import java.awt.Font;
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import java.awt.GridLayout;
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import java.awt.event.WindowAdapter;
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import java.awt.event.WindowEvent;
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import javax.swing.JApplet;
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import javax.swing.JButton;
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import javax.swing.JComboBox;
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import javax.swing.JFrame;
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import javax.swing.JLabel;
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import javax.swing.JPanel;
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import javax.swing.JScrollPane;
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import javax.swing.JTabbedPane;
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import javax.swing.JTextArea;
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import javax.swing.JTextField;
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import net.sourceforge.pinyin4j.PinyinHelper;
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import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
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import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
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import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
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import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType;
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import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;
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public class Pinyin4jAppletDemo extends JApplet
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{
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private static final Dimension APP_SIZE = new Dimension(600, 400);
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private static final long serialVersionUID = -1934962385592030162L;
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private JPanel jContentPane = null;
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private JTabbedPane jTabbedPane = null;
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private JPanel formattedCharPanel = null;
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private JPanel optionPanel = null;
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private JButton convertButton = null;
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private JPanel buttonPanel = null;
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private JTextArea formattedOutputField = null;
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private JComboBox toneTypesComboBox = null;
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private JComboBox vCharTypesComboBox = null;
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private JComboBox caseTypesComboBox = null;
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private static String appName = "pinyin4j-2.0.0 applet demo";
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private JTextField getCharTextField()
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{
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if (charTextField == null)
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{
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charTextField = new JTextField();
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charTextField.setFont(new Font("Dialog", Font.PLAIN, 12)); // Generated
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charTextField.setText("和"); // Generated
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charTextField.setPreferredSize(new Dimension(26, 20)); // Generated
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}
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return charTextField;
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}
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private JPanel getUnformattedCharPanel()
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{
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if (unformattedCharPanel == null)
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{
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unformattedHanyuPinyinLabel = new JLabel();
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unformattedHanyuPinyinLabel.setText("Hanyu Pinyin"); // Generated
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GridLayout gridLayout = new GridLayout();
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gridLayout.setRows(2); // Generated
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gridLayout.setHgap(1); // Generated
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gridLayout.setVgap(1); // Generated
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gridLayout.setColumns(3); // Generated
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unformattedCharPanel = new JPanel();
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unformattedCharPanel.setLayout(gridLayout); // Generated
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unformattedCharPanel.add(getUnformattedHanyuPinyinPanel(), null); // Generated
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unformattedCharPanel.add(getUnformattedTongyongPinyinPanel(), null); // Generated
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unformattedCharPanel.add(getUnformattedWadePinyinPanel(), null); // Generated
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unformattedCharPanel.add(getUnformattedMPS2PinyinPanel(), null); // Generated
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unformattedCharPanel.add(getUnformattedYalePinyinPanel(), null); // Generated
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unformattedCharPanel.add(getUnformattedGwoyeuRomatzyhPanel(), null); // Generated
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}
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return unformattedCharPanel;
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}
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private JTextArea getUnformattedHanyuPinyinTextArea()
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{
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if (unformattedHanyuPinyinTextArea == null)
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{
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unformattedHanyuPinyinTextArea = new JTextArea();
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unformattedHanyuPinyinTextArea.setEditable(false); // Generated
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unformattedHanyuPinyinTextArea.setLineWrap(true); // Generated
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}
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return unformattedHanyuPinyinTextArea;
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}
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private JPanel getUnformattedHanyuPinyinPanel()
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{
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if (unformattedHanyuPinyinPanel == null)
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{<