decode UTF8 to char : UTF « Development « Android

1. Android
2. Development
3. UTF

decode UTF8 to char

 

class Main {
    public static final String HEX_DIGITS = "0123456789ABCDEF";

    public static char decodeUTF8(String src) {
        if (src == null) {
            throw new IllegalArgumentException("Malformed \\uxxxx encoding.");
        }

        if (!(src.startsWith("\\u") && src.length() <= 6)) {
            throw new IllegalArgumentException("Malformed \\uxxxx encoding.");
        }

        char[] sources = src.substring(2).toCharArray();
        char res = 0;
        for (char nextChar : sources) {
            int digit = HEX_DIGITS.indexOf(Character.toUpperCase(nextChar));
            res = (char) (res * 16 + digit);
        }
        return res;
    }

}

   
  

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