java 判断字符串是中文还是英文
public class ChineseAndEnglish {
// GENERAL_PUNCTUATION 判断中文的"号
// CJK_SYMBOLS_AND_PUNCTUATION 判断中文的。号
// HALFWIDTH_AND_FULLWIDTH_FORMS 判断中文的，号
/**
* 是否是中文
* @param c
* @return
*/
public static boolean isChinese(char c) {
Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
|| ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
|| ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
|| ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {
return true;
}
return false;
}
/**
* 是否是英文
* @param c
* @return
*/
public static boolean isEnglish(String charaString){
return charaString.matches("^[a-zA-Z]*");
}
public static boolean isChinese(String str){
String regEx = "[\\u4e00-\\u9fa5]+";
Pattern p = Pattern.compile(regEx);
Matcher m = p.matcher(str);
if(m.find())
return true;
else
return false;
}
public static void main(String[] args) {
System.out.println(isChinese('员'));
System.out.println(isChinese('s'));
System.out.println(isEnglish("程序员之家"));
System.out.println(isEnglish("robert"));
System.out.println(isChinese("
程序员论坛"));
}