http://www.cnblogs.com/zhangj95/p/4198822.html
http://www.cnblogs.com/sunzn/archive/2013/07/12/3186518.html
参考:
1 package cn.sunzn.demo; 2 3 import java.util.regex.Matcher; 4 import java.util.regex.Pattern; 5 6 public class Demo { 7 public static void main(String[] args) { 8 System.out.println(isContainChinese("中国China")); 9 } 10 11 public static boolean isContainChinese(String str) { 12 13 Pattern p = Pattern.compile("[\u4e00-\u9fa5]"); 14 Matcher m = p.matcher(str); 15 if (m.find()) { 16 return true; 17 } 18 return false; 19 } 20 }
在自己的例子里面,find起作用
1 package sdf; 2 3 import java.util.regex.Matcher; 4 import java.util.regex.Pattern; 5 6 public class d { 7 8 public static boolean isNumeric(String str) { 9 for (int i = str.length(); --i >= 0;) { 10 if (!Character.isDigit(str.charAt(i))) { 11 return false; 12 } 13 } 14 return true; 15 } 16 public static void main(String[] args) { 17 // TODO Auto-generated method stub 18 19 String s1="25"; 20 String s2="补考"; 21 Pattern pattern = Pattern.compile("\\d+"); 22 23 Matcher matcher1 = pattern.matcher(s1); 24 //boolean b1= matcher1.matches(); 25 boolean b1= matcher1.find(); 26 System.out.println(b1); 27 28 Matcher matcher2 = pattern.matcher(s2); 29 //boolean b2= matcher2.matches(); 30 boolean b2= matcher2.find(); 31 System.out.println(b2); 32 33 //System.out.println(isNumeric(s1)); 34 //System.out.println(isNumeric(s2)); 35 36 } 37 38 }
时间: 2024-10-13 04:37:37