Java regular match

Java Regular expression prints out matching data

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Java regular match Chinese

Java regular match numbers

Java reads the text file

import java.io.bufferedreader;import java.io.file;import java.io.fileinputstream;import  java.io.inputstreamreader;import java.util.hashset;import java.util.set;import  Java.util.regex.matcher;import java.util.regex.pattern;public class prasesort0htm {public  static void main (String[] args)  {String regEx =  "[\u4e00-\u9fa5]{1,}[ @#]{1,}/sort-0-[0-9]{1,}.htm "; //  correctly matches Chinese string str = " Kiwi @#/sort-0-012345.htm, Orange @#/ Sort-0-012345.htm, Apple @#/sort-0-012345.htm, tropical fruit @#/sort-0-012345.htm, "; Pattern pat = pattern.compile (REGEX); Matcher mat = pat.matcher (str);while  (Mat.find ())  {system.out.println (Mat.group (0));} System.out.println ("xxxxxxxxxxxxxxxxx"); string filepath =  "D:/xxxx.txt"; Readtxtfile (FilePath);} Public static void readtxtfile (String filepath)  {try {Set<String>  Idset = new&nbSp Hashset<string> (); Set<string> nameset = new hashset<string> (); string regex =  "[\u4e00-\u9fa5]{1,}[@#]{1,}/sort-0-[0-9]{1,}.htm"; //  correctly matches string  regEx2 =  "[0-9]{2,}"; string regex3 =  "[\u4e00-\u9fa5]{1,}"; Pattern pat = pattern.compile (REGEX); Pattern pat2 = pattern.compile (REGEX2); Pattern pat3 = pattern.compile (REGEX3); string encoding =  "GBK"; File file = new file (FilePath);if  (File.isfile ()  && file.exists ())  { //  determine if a file exists Inputstreamreader read = new inputstreamreader (new  FileInputStream (file),  encoding);//  Consider the encoding format bufferedreader bufferedreader = new  BufferedReader (read); string linetxt = null;int i = 1;while  ((linetxt =  Bufferedreader.readline ())  != null)  {// systEm.out.println (Linetxt); Matcher mat = pat.matcher (linetxt);while  (Mat.find ())  {// system.out.println ( Mat.group (0));//validation can be printed successfully string temp = mat.group (0); Matcher mat2 = pat2.matcher (temp); string id =  "";while  (Mat2.find ())  {id = mat2.group (0);} if  (Idset.add (ID))  {system.out.print (ID);}  else {break;} System.out.print ("\ t"); Matcher mat3 = pat3.matcher (temp);while  (Mat3.find ())  {system.out.print (Mat3.group (0) );} System.out.print ("\ n"); i++;}}  system.out.println (i); Read.close ();} &NBSP;ELSE&NBSP;{SYSTEM.OUT.PRINTLN ("Cannot find the specified file");}}  catch  (exception e)  {system.out.println ("Error reading file contents"); E.printstacktrace ();}}

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Java regular match