HTML Encode function for Java

HTMLEncode.java

public class HTMLEncode {

    public static void main(String[] args) {
        System.out.println(HTMLEncode("Hi osanda \"><h1>XSS</h1>"));
    }

    public static String HTMLEncode(String s) {
        StringBuilder out = new StringBuilder();
        for (int i = 0; i < s.length(); i++) {
            char c = s.charAt(i);
            out.append(c > 0x7f || c == '"' || c == '&' || c == '<' || c == '>' ? "&#" + (int) c + ";" : c);
        }
        return out.toString();
    }

}