Java判断是中文还是英文

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 
 * @ClassName:  ChineseAndEnglishUtil   
 * @Description: 判断是中文还是英文
 * @author: Hepengyu
 * @date:   May 15, 2020 8:00:08 PM      
 * @Copyright:
 */
public class ChineseAndEnglishUtil {
     
	/**
	 * 
	 * @Title: isChinese   
	 * @Description:  是否是中文
	 * @param c
	 * @return: boolean      
	 * @throws
	 */
	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;
	}

	/**
	 * 
	 * @Title: isEnglish   
	 * @Description: 是否是英文
	 * @param charaString
	 * @return: boolean      
	 * @throws
	 */
	public static boolean isEnglish(String charaString) {
     
		return charaString.matches("^[a-zA-Z]*");
	}

	/**
	 * 
	 * @Title: isChinese   
	 * @Description: 是否是中文
	 * @param str
	 * @return      
	 * @return: boolean      
	 * @throws
	 */
	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;
	}

}