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new
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Ôò¿É½¨Á¢somethingÀàµÄ¶ÔÏóʵÀýºóÔÙÖ¸¶¨µ½±äÁ¿obj¡£
something obj=new something();
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clone
ÈôÀûÓÃclone·½·¨£¬Ôò¿É¸ù¾ÝÏÖÓеĶÔÏóʵÀýÀ´½¨Á¢ÀïÒ»¸öжÔÏóʵÀý¡£ÀûÓÃclone·½·¨À´½¨Á¢¶ÔÏóʵÀýÖ»ÏÞÓÚʵÏÖ
ÁËjava.lang.Cloneable½Ó¿ÚµÄÀà¡£Èç¹ûûÓÐʵÏָýӿڣ¬Ôò»áÅ׳öCloneNotSupportedExceptionÒì³£¡£Èô³ÌÐò
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class Something
{
    //codes
    public Something createClone()
    {
        Something obj=null;
        try
        {
            obj=(Something)clone();
        }
        catch(CloneNotSupportedException e)
        {
            e.printStackTrack();
        }
        return obj;
    }
}
newInstance
ÀûÓÃjava.lang.ClassÀàµÄnewInstance·½·¨£¬¿ÉÒÔ¸ù¾ÝClassµÄ¶ÔÏóʵÀý£¬½¨Á¢¸ÃClassËù±íʾµÄÀàµÄ¶ÔÏóʵ
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ÏÂÃæÊÇSomethingÀàµÄ¶ÔÏóʵÀýsomeobj£¬Ôò¿ÉÒÔÓÃÏÂÃæµÄ±í´ïʽ½¨Á¢Ò»¸öSomethingÀàµÄ¶ÔÏóʵÀý¡£
someobj.getClass().newInstance();
//or next codes
Something obj=Class.forName(Something).newIntance();
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JAVA²Ù×÷cookie

È¡:
Cookie[] cookies = request.getCookies();
 if(cookies!=null){
    for(Cookie cookie : cookies){
   if(cookie.getName().equals("mid")){
    String mid = cookie.getValue();
   }
  }
 }
´æ:
String mid ......

javaÓïÑÔÈçºÎµ÷ÓÃDLL

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    static{
System.loadLibrary(DllConstants.DLL_PATH);
  }
2¡£½«dllÖпª·¢µÄ½Ó¿ÚÉùÃ÷Ϊ±¾µØ½Ó¿Ú
   public native String[] getTxt();
   
......

¶¯Ì¬Éú³ÉjavaÎļþµÄ·½·¨

package com.hongsoft.test;
import java.io.*;
//¶¨ÖƵÄÀà×°ÈëÆ÷
public class TestCompile extends ClassLoader
{
String _compiler;
String _classpath;
public static void main(String[] args)
{
new TestCompile();
}
public TestCompile()
{
super(ClassLoader.getSystemClassLoader());
//ĬÈϱàÒëÆ ......

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