Java判断字符串是否是纯中文或者英文

  

public static boolean isEnglishStr(String charaString){
  return charaString.matches("^[a-zA-Z]*");
}


public static boolean isChineseStr(String str){
  String regEx = "[\u4e00-\u9fa5]+";
  Pattern p = Pattern.compile(regEx);
  Matcher m = p.matcher(str);
  if(m.find()) {
    return true;    
  } else {
    return false;    
  }
}