java如何通过正则表达式完成如下任务： 将字母或 数字开头的字符串截取数字（包含数字）之前的。 java如何截取数字开头后面的字符串？
java\u5982\u4f55\u4ece\u4efb\u610f\u5b57\u7b26\u4e32\u4e2d\u622a\u53d6\u6570\u5b57\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u4ece\u6587\u672c\u4e2d\u622a\u53d6\u6570\u5b57\uff0c\u4e0b\u9762\u662f\u8be6\u7ec6\u4ee3\u7801\uff1a
class Ideone
{
public static void main (String[] args) throws java.lang.Exception
{
String phoneString = "\u54c8\u54c8,13888889999";
// \u63d0\u53d6\u6570\u5b57
// 1
Pattern pattern = Pattern.compile("[^0-9]");
Matcher matcher = pattern.matcher(phoneString);
String all = matcher.replaceAll("");
System.out.println("phone:" + all);
// 2
Pattern.compile("[^0-9]").matcher(phoneString).replaceAll("");
}
}
\u7528\u6b63\u5219\u8868\u8fbe\u5f0f String name = "zhidaole5.35"; Pattern patternEnd = Pattern.compile("\\d+(\\.\\d+)?$"); Matcher matcherEnd = patternEnd.matcher(name); if(matcherEnd.find()){ System.out.println(matcherEnd.group()); }
import java.util.regex.Pattern;
public class ttts {
public static void main(String... strs) {
String str = "VVV4BC3233BBB";
System.out.println(getStrings(new StringBuilder(),str));
}
public static String getStrings(StringBuilder sb,String str) {
if (str == null)return "";
if (str.equals(""))return sb.toString();
Pattern p = Pattern.compile("[a-zA-Z]*[0-9]*");
Matcher m = p.matcher(str);
if (m.find()) {
String group = m.group();
sb.append(group);
String subStr = str.substring(group.length());
Pattern pattern = Pattern.compile(".*\\d+.*");
if (pattern.matcher(subStr).matches()) {
getStrings(sb,str.substring(group.length()));
}
}
return sb.toString();
}
}
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Test {
public static boolean check(String str,String regex){
Pattern p=Pattern.compile(regex);
Matcher m=p.matcher(str);
boolean result =m.find();
return result;
}
public static String getSubString(String s){
int m = -1;
int length = s.length();
if(s!=null&&!"".equals(s.trim())){
for(int i=length-1;i>0;i--){
char c = s.charAt(i);
boolean b = check(c+"", "\\d");
if(b){
m = i;
break;
}
}
}
String result = "";
if(m!=-1){
result = s.substring(0,m+1);
}
return result;
}
public static void main(String args[]) throws IOException {
String s = "AS12VV33BV";
System.out.println(getSubString(s));
}
}
好复杂的说
^/0-9/g
你是想用一个正则表达式找出来?
绛旓細Java涓锛姝ｅ垯琛ㄨ揪寮鏄竴绉嶅己澶х殑鏂囨湰澶勭悊宸ュ叿锛岀敤浜庡鐞嗗瓧绗︿覆鍜屾枃鏈ā寮忋傚畠鍙互鐢ㄤ簬鎼滅储銆佸尮閰嶃佹浛鎹㈠瓧绗︿覆涓殑鐗瑰畾妯″紡锛屾槸瀛楃涓插鐞嗕腑涓嶅彲鎴栫己鐨勫伐鍏枫傚湪Java涓紝姝ｅ垯琛ㄨ揪寮忕殑瀹炵幇涓昏閫氳繃java.util.regex鍖呬腑鐨勭浉鍏崇被鍜屾帴鍙ｆ潵瀹屾垚銆傝缁嗚В閲 1. 姝ｅ垯琛ㄨ揪寮忕殑姒傚康锛氭鍒欒〃杈惧紡鏄竴绉嶅瓧绗︿覆妯″紡锛岀敤浜庢弿...
绛旓細涓涓姝ｅ垯琛ㄨ揪寮灏辨槸鐢辨櫘閫氬瓧绗(渚嬪澶у皬鍐欏瓧姣)浠ュ強鐗规畩瀛楃(绉颁负鍏冨瓧绗)缁勬垚鐨勬枃瀛楁ā寮忋傝妯″紡鎻忚堪鍦ㄦ煡鎵炬枃瀛椾富浣撴椂寰呭尮閰嶇殑涓涓垨澶氫釜瀛楃涓层傛鍒欒〃杈惧紡浣滀负涓涓ā鏉匡紝灏嗘煇涓瓧绗︽ā寮忎笌鎵鎼滅储鐨勫瓧绗︿覆杩涜鍖归厤銆傚湪鏈绠鍗曠殑鎯呭喌涓嬶紝涓涓鍒欒〃杈惧紡鐪嬩笂鍘诲氨鏄竴涓櫘閫氱殑鏌ユ壘涓层備緥濡傦紝姝ｅ垯琛ㄨ揪寮"java"...
绛旓細- 濡傛灉瀛樺湪涓垝绾縛-`锛屽畠鍚庨潰鑷冲皯璺熺潃涓涓暟瀛楀瓧绗︼紙鐢盽\\d{1,18}`淇濊瘉锛夈- 濡傛灉涓嶅瓨鍦ㄤ腑鍒掔嚎锛屽垯鏁翠釜瀛楃涓插彧鍖呭惈涓涓暟瀛楀瓧绗︼紙鐢卞紑澶寸殑`\\d`淇濊瘉锛夈- 鎬婚暱搴﹀湪1鍒20浣嶄箣闂达紙鐢姝ｅ垯琛ㄨ揪寮缁撴瀯鏈韩鍜屽瓧绗﹂泦鐨勮寖鍥翠繚璇侊級銆浣跨敤绀轰緥锛歚``java import java.util.regex.Matcher;import java.ut...
绛旓細姝ｅ垯琛ㄨ揪寮涓璠]涓殑鍐呭琛ㄧず鍖归厤鍏朵腑浠讳綍涓涓 \s 琛ㄧず鍖归厤浠讳綍涓嶅彲瑙佺殑绌哄瓧绗,浣嗘槸鍦java涓闇瑕佸湪鍓嶉潰鍐嶅姞涓涓浆涔夊瓧绗鎵嶈兘鐢熸晥 缁欎綘涓涓鍒欒〃杈惧紡鐨勫涔犲拰鍦ㄧ嚎娴嬭瘯鍦板潃: //瀛︿範鍦板潃 www.sub-273.com/demo/RegEx/regex.html //娴嬭瘯鍦板潃 tool.oschina.net/regex 鍦ㄦ祴璇曞湴鍧閲,浣犲彲浠ヨ緭鍏2016-06-24 10:33:...
绛旓細鍒╃敤姝ｅ垯琛ㄨ揪寮忎粠缁欏畾鐨勫瓧绗︿覆涓彇鍑虹鍚堝尮閰嶈鍒欑殑瀛楃涓茬殑Java绋嬪簭濡備笅:import java.util.regex.Matcher;import java.util.regex.Pattern;public class E { public static void main(String[] args) { Pattern p = Pattern.compile("[A-Za-z]+");//璁惧畾鍖归厤瑙勫垯涓哄彇鍑哄瓧绗︿覆涓殑瀛楁瘝 Matcher ...
绛旓細java鐢ㄦ鍒欒〃杈惧紡缁熻ip涓暟锛歞isplay ip count rule [ | { begin | exclude | include } regular-expression ]鍙傛暟璇存槑锛殀锛浣跨敤姝ｅ垯琛ㄨ揪寮瀵规樉绀轰俊鎭繘琛岃繃婊ゃ傛湁鍏虫鍒欒〃杈惧紡鐨勮缁嗕粙缁嶏紝璇峰弬瑙佲滃叆闂ㄩ厤缃寚瀵尖濅腑鐨勨淐LI鈥濄俠egin锛氫粠鍖呭惈鎸囧畾姝ｅ垯琛ㄨ揪寮忕殑琛屽紑濮嬫樉绀恒俥xclude锛氬彧鏄剧ず涓嶅寘鍚寚瀹氭鍒...
绛旓細//涓嬮潰杩欎釜姝ｅ垯琛ㄨ揪寮鍖归厤涓嶈兘浠.css,.html,.js,.json鎴栬.xml缁撳熬鐨勫瓧绗︿覆import java.util.regex.Matcher;import java.util.regex.Pattern;public class CC { public static void main(String[] args) { String s="xxxx.js.jss";//鐩爣瀛楃涓 String regex="((?!\\.((css)|(html)|(...
绛旓細import java.util.regex.Pattern;public class ttts { public static void main(String... strs) { String str = "VVV4BC3233BBB";System.out.println(getStrings(new StringBuilder(),str));} public static String getStrings(StringBuilder sb,String str) { if (str == null)return "";if...
绛旓細1銆佹楠や竴 : 鏂板缓涓涓伐绋嬪拰绫 鎴戜滑鍦ㄨ繖涓被涓紑鍙戠浉鍏崇殑浠ｇ爜锛屽厛鐪嬬湅銆java.util.regex 杩欎釜鍖呭惂銆2銆佹楠や簩 : 绫 Pattern 鐨浣跨敤 绫籔attern 锛 鍏朵竴涓璞″氨浠ｈ〃涓绉嶆寚瀹氱殑姝ｅ垯琛ㄨ揪寮锛屾垜浠閫氳繃杩欎釜绫诲拰涓浜涙鍒欒〃杈惧紡鐨勮鍒欐潵鐢熸垚鑷繁鎯宠鐨勫瓧绗︿覆鍖归厤瑙勫垯锛佽繖涓被锛屼綘鏃犳硶閫氳繃 new 鏉ュ垱寤哄璞★紝...
绛旓細姝ｅ垯琛ㄨ揪寮忓涓嬶細create[\sA-Za-z]+index[\sA-Za-z_]+ 涓嶈繃鎴戣涓烘ゼ涓荤粰瀹氱殑闄愬埗涓嶅缁嗭紝鍍忋愮┖鏍煎拰瀛楁瘝涓嬪垝绾跨瓑鑻ュ共銆戣繖鏍风殑璇存硶姣旇緝妯＄硦锛屼笂闈㈢殑姝ｅ垯琛ㄨ揪寮忓彲浠ユ甯稿尮閰嶆纭殑璇彞锛屼絾鏄浜庨敊璇鍙ョ殑闄愬埗涓嶅锛岃繕鏈夎繘涓姝ヤ慨鏀圭殑浣欏湴銆傚湪JAVA涓娇鐢ㄦ鍒欒〃杈惧紡鏃讹紝搴旇import涓嬮潰涓や釜绫 import java....
