Integer to string conversion

Question

Normally I used one of these methods while converting an integer to a string:

Integer.toString(i) or
String.valueOf(i) while i is an integer-value.

Are both ways are correct?

What makes you feel it might not be correct. Does it sometimes fail, or do something suprising? Have you read the documentation? — JB Nizet, Dec 29 '15 at 13:26
You should do the one which is more obvious to you. I use `"" + i` which is shorter, though slower. — Peter Lawrey, Dec 29 '15 at 13:29

score 6 · Accepted Answer · answered Dec 29 '15 at 13:25

Both ways are the same :

/**
 * Returns the string representation of the {@code int} argument.
 * <p>
 * The representation is exactly the one returned by the
 * {@code Integer.toString} method of one argument.
 *
 * @param   i   an {@code int}.
 * @return  a string representation of the {@code int} argument.
 * @see     java.lang.Integer#toString(int, int)
 */
public static String valueOf(int i) {
    return Integer.toString(i);
}

Integer to string conversion

1 Answers1