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System.out.println(2|0); //0010 0000 =>0010 = 2
System.out.println(2|1); //0010 0001 =>0011 = 3
System.out.println(3|2); //0011 0010 =>0011 = 3
System.out.println(3&2); //0011 0010 =>0010 = 2
/*
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  00011|0010  ´ÓÓÒµ½×ó±È½Ï0|1 = 1, 1|0 = 1 ½á¹ûΪ0011
  Ð¡Ìáʾ:Integer.toBinaryString(7),¿ÉÒÔ»ñµÃ7µÄ¶þ½øÖÆ
*/


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// multi.MultiServer.java
package multi;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
public class MultiServer {
private int port = 8000;
private int backlog = 42;
private ServerSocket server_socket;
private Thread ......

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 import java.io.*;
import java.util.Enumeration;
//import java.util.zip.*;
import org.apache.tools.zip.*;
public class Test {
//½âѹÎļþ
  public static void extZipFileList(String zipFileName, String extPlace) {
    try {
   ......

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String[] ips = ipValue.split("\\.");
String binaryVal = "";
for (int i = 0; i < ips.length; i++)
{
String binaryStr = Integer.toBinaryString(Integer.parseInt(ips[i]));


Integer times = 8 - binaryStr.length();
......

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