Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Java ±éÀú Map

Map m = new HashMap();
for (Object o : map.keySet()){
map.get(o);
}

JDK1.4

Map map = new HashMap() ;

Iterator it = map.entrySet().iterator() ;
while (it.hasNext())
{
Map.Entry entry = (Map.Entry) it.next() ;
Object key = entry.getKey() ;
Object value = entry.getValue() ;
}


Ïà¹ØÎĵµ£º

java×Ö·û´®Ìæ»»£º´óСдÃô¸ÐºÍ²»Ãô¸Ð£¬Ò»¾ä´úÂë½â¾ö

 public static void replaceString(String a,String b,String c){
          System.out.println(a);
          String result = a.replaceAll("(?i)"+b, c); //´óСд²»Ãô¸Ð
 
      ......

java UnicodeÓëÖÐÎÄ»¥»»

static String string2Unicode(String s) {
try {
StringBuffer out = new StringBuffer("");
byte[] bytes = s.getBytes("unicode");
for (int i = 2; i < bytes.length - 1; i += 2) {
out.append("u");
String str = Integer.toHexString(bytes[i + 1] & 0xff);
f ......

Java reflection´úÂëʾÀý

package com.mywebtest.common;
import java.lang.reflect.Array;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
/**
 * Java reflection ·Ç³£ÓÐÓã¬ËüʹÀàºÍÊý¾Ý½á¹¹Äܰ´Ãû³Æ¶¯Ì¬¼ìË÷Ïà¹ØÐÅÏ¢£¬²¢ÔÊÐíÔÚÔËÐÐ× ......

java¶ÁдÎļþ_IO

        Ê¹ÓÃJava²Ù×÷Îı¾ÎļþµÄ·½·¨Ïê½â
        ÕªÒª: ×î³õjavaÊDz»Ö§³Ö¶ÔÎı¾ÎļþµÄ´¦ÀíµÄ£¬ÎªÁËÃÖ²¹Õâ¸öȱº¶¶øÒýÈëÁËReaderºÍWriterÁ½¸öÀà
×î³õjavaÊDz»Ö§³Ö¶ÔÎı¾ÎļþµÄ´¦ÀíµÄ£¬ÎªÁËÃÖ²¹Õâ¸öȱº¶¶øÒýÈëÁËReaderºÍWriterÁ½¸öÀ࣬ÕâÁ½¸öÀà¶¼ÊdzéÏ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ