Java 判断字符串中是否包含中文的实例详解

package test;      import static java.lang.Character.UnicodeBlock.*;   import com.google.common.base.Strings;      public class CheckContainChinese {        public static void main(String[] args) {       String containChinese = "test,我有中文";       String containNoChiese = "test, i don't contain chinese";       System.out.println("containChinese 是否包含中文 :" + checkStringContainChinese(containChinese));       System.out.println("containNoChiese 是否包含中文 :" + checkStringContainChinese(containNoChiese));     }        private static boolean checkStringContainChinese(String checkStr){       if(!Strings.isNullOrEmpty(checkStr)){         char[] checkChars = checkStr.toCharArray();         for(int i = 0; i < checkChars.length; i++){           char checkChar = checkChars[i];           if(checkCharContainChinese(checkChar)){             return true;           }         }       }       return false;     }       private static boolean checkCharContainChinese(char checkChar){       Character.UnicodeBlock ub = Character.UnicodeBlock.of(checkChar);       if(CJK_UNIFIED_IDEOGRAPHS == ub || CJK_COMPATIBILITY_IDEOGRAPHS == ub || CJK_COMPATIBILITY_FORMS == ub ||           CJK_RADICALS_SUPPLEMENT == ub || CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A == ub || CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B == ub){         return true;       }       return false;     }   }