Convert International String to \u Codes in java

Question

How can I convert an international (e.g. Russian) String to \\u numbers (unicode numbers)
e.g. \\u041e\\u041a for OK ?

Answer 1

Here's an improved version of ArtB's answer:

    StringBuilder b = new StringBuilder();

    for (char c : input.toCharArray()) {
        if (c >= 128)
            b.append("\\u").append(String.format("%04X", (int) c));
        else
            b.append(c);
    }

    return b.toString();

This version escapes all non-ASCII chars and works correctly for low Unicode code points like Ä.