问如何在java字符串中找到第一个汉字

EN

public static int firstChineseChar(String s) {
    for (int i = 0; i < s.length(); ) {
        int index = i;
        int codepoint = s.codePointAt(i);
        i += Character.charCount(codepoint);
        if (Character.UnicodeScript.of(codepoint) == Character.UnicodeScript.HAN) {
            return index;
        }
    }
    return -1;
}

for(int i = 0; i < str.length(); i++) {
    char c = str.charAt(i);
    int char = (int) c;
    if(char < 0 || char > 255) // Is not ascii
    System.out.println("The first chinese char is: " + str.charAt(i);
 }