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javaÖÐStringÀàµÄ¹¹Ô캯Êý

StringÀàÖеĹ¹Ô캯Êý
String(); ¹¹ÔìÒ»¸ö¿Õ×Ö·û´®¶ÔÏó
String(byte[] bytes); ͨ¹ýbyteÊý×é¹¹Ôì×Ö·û´®¶ÔÏó
String(byte[] bytes,int offset,int length);ͨ¹ýbyteÊý×飬´Óoffset¿ªÊ¼£¬×ܹ²length³¤µÄ×Ö½Ú¹¹Ôì×Ö·û´®¶ÔÏó
String(char[] value); ͨ¹ýcharÊý×é¹¹Ôì×Ö·û´®¶ÔÏó
String(byte[] char,int offset,int length);ͨ¹ýcharÊý×飬´Óoffset¿ªÊ¼£¬×ܹ²length³¤µÄ×Ö½Ú¹¹Ôì×Ö·û´®¶ÔÏó
String(String original); ¹¹ÔìÒ»¸öoriginalµÄ¸±±¾£¬¿½±´Ò»¸öoriginal
String(StringBuffer buffer);ͨ¹ýStringBufferÊý×é¹¹Ôì×Ö·û´®¶ÔÏó
public class StringClassTest {
    public static void main(String[] args) {
        // ×Ö½ÚÊý×é
        byte[] bArray = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h' };
        // ×Ö·ûÊý×é
        char[] cArray = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h' };
        //ÉùÃ÷Ò»¸öStringBuffer
        StringBuffer strbuf = new StringBuffer("strbuf");
        // ʵÀýÒ»¸öString¶ÔÏó
        String str = new String("str abcd");
        //ʵÀýÒ»¸öString¶ÔÏó ͨ¹ýÒ»¸öbtyeÊý×é¹¹Ôì×Ö·û´®¶ÔÏó£¨×Ö½ÚÊý×飩
        String strb = new String(bArray);
        //ʵÀýÒ»¸öString¶ÔÏó ͨ¹ýÒ»¸öcharÊý×é¹¹Ôì×Ö·û´®¶ÔÏó£¨×Ö·ûÊý×飩
        String strc = new String(cArray);
        //ʵÀýÒ»¸öString¶ÔÏó ͨ¹ýÒ»¸öcharÊý×é¹¹Ôì×Ö·û´®¶ÔÏó(×Ö½ÚÊý×飬¿ªÊ¼µÄÊý¾Ý£¬½ØµÃÊý¾Ý³¤¶È)
        String strbIndex = new String(bArray, 1, 5);
        //ʵÀýÒ»¸öString¶ÔÏó ͨ¹ýÒ»¸öcharÊý×é¹¹Ôì×Ö·û´®¶ÔÏó£¨×Ö·ûÊý×飬¿ªÊ¼µÄÊý¾Ý£¬½ØµÃÊý¾Ý³¤¶È£©
        String strcIndex = new String(cArray, 1, 2);
        //ʵÀýÒ»¸ö


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javaʵÏÖµÄFTPÉÏ´«ÏÂÔØ¿Í»§¶Ë

org.apache.commons.net.ftp.*ÖеÄFTPClientÀàʵÏÖµÄFTPÉÏ´«ÏÂÔØ¹¦ÄÜ£º
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package com.java.ftp;
import java.io.File;
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Java 1.1ÔöÌíÁËÒ»ÖÖÓÐȤµÄÌØÐÔ£¬ÃûΪ¡°¶ÔÏóÐòÁл¯¡±£¨Object Serialization£©¡£ËüÃæÏòÄÇЩʵÏÖÁËSerializable½Ó¿ÚµÄ¶ÔÏ󣬿ɽ«ËüÃÇת»»³ÉһϵÁÐ×Ö½Ú£¬²¢¿ÉÔÚÒÔºóÍêÈ«»Ö¸´»ØÔ­À´µÄÑù×Ó¡£ÕâÒ»¹ý³ÌÒà¿Éͨ¹ýÍøÂç½øÐС£ÕâÒâζ×ÅÐòÁл¯»úÖÆÄÜ×Ô¶¯²¹³¥²Ù×÷ϵͳ¼äµÄ²îÒì¡£»»¾ä»°Ëµ£¬¿ÉÒÔÏÈÔÚWindows»úÆ÷ÉÏ´´½¨Ò»¸ö¶ÔÏó£¬¶ÔÆäÐòÁл¯£ ......

×ܽἸÖÖJava×Ö·û´®·´×ªµÄʵÏÖ·½·¨

ÓÃÈýÖÖ·½·¨À´ÊµÏÖ×Ö·û´®µÄ·´×ª
/**
* @(#)ReverseString.java
*
* ReverseString application
*
* @author
* @version 1.00 2010/4/20
*/
import java.util.*;
import java.io.*;

public class ReverseString {


public static void main(String[] args) throws IOException{
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javaµÄÏß³Ìͬ²½»úÖÆsynchronized¹Ø¼ü×ÖµÄÀí½â

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       1)synchronized¹Ø¼ü×Ö¿ÉÒÔ×÷Ϊº¯ÊýµÄÐÞÊηû£¬Ò²¿É×÷Ϊº¯ÊýÄÚµÄÓï¾ä£ ......
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