java判断是汉字和英文

public class HanZiHePinYin {
    public static void main(String[] args) {
        String aa="sdad中国,.ss";
        char[] charArray = aa.toCharArray();
        for (char c : charArray) {
            
            int cnorEn = isCnorEn(c);
            System.out.println(c+":"+cnorEn);
        }
    }
    static int isCnorEn(char c){
        if(c >= 0x0391 && c <= 0xFFE5) //中文字符
            return 1;
        if(c>=0x0000 && c<=0x00FF){ //英文字符
            return 2;
        }
        return 3;
    }
}