随便小屋

Pattern p = Pattern.compile("java", Pattern.CASE_INSENSITIVE); Matcher m = p.matcher("java Java JaVa IloveJAVA you hate jaVAadsladl"); StringBuffer buf = new StringBuffer(); int i = 0; while(m

import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.util.regex.Matcher; import java.util.regex.Pattern; public cla

Pattern p = Pattern.compile("(\\d{3,5})([a-z]{2})"); String s = "122jj-212js-33442ad-00"; Matcher m = p.matcher(s); while(m.find()){ p(m.group(1)); } 在Pattern中第一个左括号为第一组  所以group中写group(1)