Generate fixed length Strings filled with whitespaces

Question

I need to produce fixed length string to generate a character position based file. The missing characters must be filled with space character.

As an example, the fi

Answer 1

This code will have exactly the given amount of characters; filled with spaces or truncated on the right side:

private String leftpad(String text, int length) {
    return String.format("%" + length + "." + length + "s", text);
}

private String rightpad(String text, int length) {
    return String.format("%-" + length + "." + length + "s", text);
}