JAVAÅжÏ×Ö·û´®ÊÇ·ñΪÊý×Ö
StringתCharacterÊý×飬ÓÃCharacterµÄisDigitºÍisLetterº¯ÊýÈ¥Åжϡ£
public static boolean isNumeric(String str) {
for (int i = str.length(); i = 0;) {
if (!Character.isDigit(str.charAt(i))) {
return false;
}
}
return true;
}
public static boolean isNumeric(String str) {
Pattern pattern = Pattern.compile("[0-9]*");
return pattern.matcher(str).matches();
}
public static boolean isNumeric(String str) {
if (str.matches("““d*")) {
return true;
}
return false;
}
public static boolean isNumeric(String str) {
for (int i = str.length(); i = 0;) {
int chr = str.charAt(i);
if (chr 48chr 57)
return false;
}
return true;
}
Ïà¹ØÎĵµ£º
http://danadler.com/jacob/
¡¡¡¡http://jakarta.apache.org/poi/
¡¡¡¡http://www.onjava.com/pub/a/onjava/2003/01/22/poi.html
¡¡¡¡http://www.csdn.net/develop/article/15/15311.shtm
¡¡¡¡http://forum.java.sun.com/thread.jsp?forum=40&thread=382666&tstart=0&trang ......
/**
* Õâ¶Î³ÌÐò²¢²»ÄÑ£¬Ó¦¸ÃºÜºÃ¿´¶®£¬ÎҰѹý³Ì´óÖ½²Ò»Ï£¬Ê×ÏÈÄãµÄÄÔ×ÓÀïÏȸ¡ÏÖÒ»¸öÊý×éºÍÈý¸öÖ¸Õ룬
* µÚÒ»¸öÖ¸Õë³ÆÎªpÖ¸Õ룬ÔÚÕû¸ö¹ý³Ì½áÊøÖ®Ç°ËüÀÎÀεÄÖ¸ÏòµÚÒ»¸öÊý£¬µÚ¶þ¸öÖ¸ÕëºÍµÚÈý¸öÖ¸Õë·Ö±ðΪloÖ¸ÕëºÍhiÖ¸Õ룬
* ·Ö±ðÖ¸Ïò×î×ó±ßµÄÖµºÍ×îÓұߵÄÖµ¡£loÖ¸ÕëºÍhiÖ¸Õë´ÓÁ½±ßͬ ......
/*
* @(#)ObjectPoolManager.java 1.00 2005-5-1
*
* Copyright 2005 BeanSoft Studio. All rights reserved.
* PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package  ......
ÉèÖÃ×¢ÊÍÄ£°åµÄÈë¿Ú£º Window->Preference->Java->Code Style->Code Template È»ºóÕ¹¿ªComments½Úµã¾ÍÊÇËùÓÐÐèÉèÖÃ×¢Ê͵ÄÔªËØÀ²¡£ÏÖ¾Íÿһ¸öÔªËØÖðÒ»½éÉÜ£º
Îļþ(Files)×¢ÊͱêÇ©£º
/**
* @Title: ${file_name}
* @Package ${package_name}
* @Description: ${todo}(ÓÃÒ»¾ä»°ÃèÊö¸ÃÎļ ......
1.Listת»»³ÉΪÊý×é¡££¨ÕâÀïµÄListÊÇʵÌåÊÇArrayList)
¡¡¡¡µ÷ÓÃArrayListµÄtoArray·½·¨¡£
¡¡¡¡toArray
¡¡¡¡public <T> T[] toArray(T[] a)·µ»ØÒ»¸ö°´ÕÕÕýÈ·µÄ˳Ðò°üº¬´ËÁбíÖÐËùÓÐÔªËØµÄÊý×飻·µ»ØÊý×éµÄÔËÐÐʱÀàÐ;ÍÊÇÖ¸¶¨Êý×éµÄÔËÐÐʱÀàÐÍ¡£Èç¹ûÁбíÄÜ·ÅÈëÖ¸¶¨µÄÊý×飬Ôò·µ»Ø·ÅÈë´ËÁбíÔªËØµÄÊý×é¡£·ñÔò£¬½«¸ù¾ ......