Java Regular Presentation sample

import java.util.regex.Matcher;import java.util.regex.Pattern;public class RegexMatches{ public static void main( String args[] ){ // 按指定模式在字符串查找 String line = "This order was placed for QT3000! OK?
"; String pattern ="(. *) (\\d+) (. *)";//Create Pattern ObjectPattern R = pattern.compile (pattern);///Create Matcher objects nowMatcher m = r.matcher (line);if(M.find ()) {System. out. println ("Found value:"+ M.Group(0) ); System. out. println ("Found value:"+ M.Group(1) ); System. out. println ("Found value:"+ M.Group(2) ); }Else{System. out. println ("NO MATCH"); } }}

Main steps:

1. The pattern object is constructed by means of a regular table.

2. Building Matcher objects with pattern
3. Call to Matcher.find() get matching results

Java Regular Presentation sample