How do I get the decimal value of a unicode character in Java?

Question

I need a programmatic way to get the decimal value of each character in a String, so that I can encode them as HTML entities, for example:

UTF-8:

著者名

Decimal:

著者名

Answer 1

I suspect you're just interested in a conversion from char to int, which is implicit:

for (int i = 0; i < text.length(); i++)
{
    char c = text.charAt(i);
    int value = c;
    System.out.println(value);
}

EDIT: If you want to handle surrogate pairs, you can use something like:

for (int i = 0; i < text.length(); i++)
{
    int codePoint = text.codePointAt(i);
    // Skip over the second char in a surrogate pair
    if (codePoint > 0xffff)
    {
        i++;
    }
    System.out.println(codePoint);
}