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Java¶àÏß³ÌÁÄÌì³ÌÐòµÄÎÊÌâ - Java / ·Ç¼¼ÊõÇø

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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
public class ChatJFrame extends JFrame implements ActionListener
{
  private JTextArea text_receiver; //ÏÔʾ¶Ô»°ÄÚÈݵÄÎı¾Çø
  private JTextField text_sender; ......

javaʵÏÖÊ÷ÈÝÒ×Âð - Java / Java SE

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package test;
/**
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* @author Administrator
*/
public class Node {
int i;
Node leftNode;
Node rightNode;
}
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JavaÄÚ´æ´æ´¢Ô­ÀíÏê½â - À©³ä»°Ìâ / ³ÌÐòÈËÉú

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Java MEÊý¾Ý¿âÒýÇæ - Java / J2ME

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JAVA »ñÈ¡PDF ÎļþÒ³Ãæ´óС - Java / Java SE

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MYSQLÁ¬½ÓµÄÎÊÌâ - Java / Java SE

Java code:

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was51093 seconds ago.The last packet sent successfully to the server was 51093 seconds ago, which is longer than the server configured value of 'wait_timeout'. You should co ......
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