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import java.util.Date;
import java.text.DateFormat;
import java.text.SimpleDateFormat; Date dt=new Date();//Èç¹û²»ÐèÒª¸ñʽ,¿ÉÖ±½ÓÓÃdt,dt¾ÍÊǵ±Ç°ÏµÍ³Ê±¼ä
DateFormat df = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");//ÉèÖÃÏÔʾ¸ñʽ
String nowTime="";
nowTime= df.format(dt);//ÓÃDateFormatµÄformat()·½·¨ÔÚdtÖлñÈ¡²¢ÒÔyyyy/MM/dd HH:mm:ss¸ñʽÏÔʾ
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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× ......
¼ÇµÃ´óѧ±ÏÒµÕÒ¹¤×÷ʱ£¬Ãæ¹Ù¾³£ÎʵľÍÊÇ˵˵“==Óëequals”µÄÇø±ð£¬ºúÂÒ´ðһͨ¡£½ñÌì¿´Ò»ÏÂÔÀí°É¡£
ʲôʱºòÐèÒªÖØÐ´equals()?
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public boolea ......
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 ......
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