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 Runtime.getRuntime().exec(command)
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 Runtime.getRuntime().exec("ls");
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 µ÷ÓÃRuntime.exec·½·¨½«²úÉúÒ»¸ö±¾µØµÄ½ø³Ì,²¢·µ»ØÒ»¸öProcess×ÓÀàµÄʵÀý£¬
£¨×¢Ò⣺Runtime.getRuntime().exec£¨command£©·µ»ØµÄÊÇÒ»¸öProcessÀàµÄʵÀý£©,
¸ÃʵÀý¿ÉÓÃÓÚ¿ØÖƽø³Ì»òÈ¡µÃ½ø³ÌµÄÏà¹ØÐÅÏ¢. ÓÉÓÚµ÷ÓÃRuntime.exec·½·¨Ëù´´½¨µÄ×Ó½ø³ÌûÓÐ×Ô¼ºµÄÖÕ¶Ë»ò¿ØÖÆÌ¨,Òò´Ë¸Ã×Ó½ø³ÌµÄ±ê×¼IO(Èçstdin,stdou,stderr)¶¼Í¨¹ýProcess.getOutputStream(),Process.getInputStream(), Process.getErrorStream()·½·¨Öض¨Ïò¸øËüµÄ¸¸½ø³ÌÁË.Óû§ÐèÒªÓÃÕâЩstreamÀ´Ïò×Ó½ø³ÌÊäÈëÊý¾Ý»ò»ñÈ¡×Ó½ø³ÌµÄÊä³ö. ¿ÉÒÔ²ÉÓÃÈçÏ·½·¨£º
public static void main(String[] agrs){
try
{
 Process process = Runtime.getRuntime().exec ("ls"); 
 InputStreamReader ir=newInputStreamReader(process.getInputStream());
 LineNumberReader input = new LineNumberReader (ir);
 String line;
 while ((line = input.readLine ()) != null){
  System.out.println(line)
}
}catch (java.io.IOException e){
 System.err.println ("IOException " + e.getMessage());
}
}


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 public class OuterClass
 {
 public class InnerClass
 {
 public int code = 100;
 }
 public static void main(String[] args)
 {
 OuterClass outer = new OuterClass();
 OuterClass.InnerClass o = outer.new InnerClass();
 System. ......

JavaÍøÂç±à³Ìѧϰ±Ê¼ÇÖ®Socket(Ò»)

    ÔÚ¿Í»§/·þÎñÆ÷ͨÐÅģʽÖУ¬¿Í»§¶ËÖ÷¶¯´´½¨Óë·þÎñÆ÷Á¬½ÓµÄSocket£¬·þÎñÆ÷ÊÕµ½¿Í»§¶ËµÄÁ¬½ÓÇëÇó£¬Ò²´´½¨ÁËÓë¿Í»§¶ËÁ¬½ÓµÄSocket¡£
    ¿Í»§¶ËÖ÷¶¯´´½¨Socketʱºò£¬ÐèÒª×öÏÂÃæÒ»Ð©ÊÂÇ飺
    1. ¹¹ÔìSocket.
    2. É趨µÈ´ý½¨Á¢Á¬½ÓµÄ³¬Ê±Ê±¼ä
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LinuxÅäÖÃApache·þÎñÆ÷È«¹¥ÂÔ

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¡¡¡¡# lynx http://www.apache.org/dist/httpd/httpd-2_0_NN.tar.gz
¡¡¡¡NN±íʾµ±Ç°ËùÓõİ汾ºÅ¡£
¡¡¡¡(2) ½âѹËõ
¡¡¡¡# gzip -d httpd-2_0_NN.tar.gz
¡¡¡¡# tar xvf httpd-2_0_NN.tar¡¡
¡¡¡¡(3) ÅäÖÃ.
¡¡¡¡# ./configure --pre ......
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