Java判断中文的方法

1、

  int count = 0;
  String regEx = "[\\u4e00-\\u9fa5]";
  // System.out.println(regEx);
  String str = "字符串";
  // System.out.println(str);
  Pattern p = Pattern.compile(regEx);
  Matcher m = p.matcher(str);
  System.out.print("提取出来的中文有：");
  while (m.find()) { 
     System.out.print(m.group(0)+" ");
  }
  System.out.println();
  System.out.println(p.matches(regEx, str));

 

2、

String str1 = "字符串aa";
  for(int i=0;i<str1.length();i++)
    {
           String test=str1.substring(i,i+1);
           System.out.println(test);
           if(test.matches("[\\u4E00-\\u9FA5]+"))
           {
                 System.out.println("中文");
           }
    }

 

3、

System.out.println(str1.length()==str1.getBytes().length?”English”:”Contains Chinese”);