String.equals versus ==
java, string
Solution
Use the `string.equals(Object other)` function to compare strings, not the `==` operator.
The function checks the actual contents of the string, the `==` operator checks whether the references to the objects are equal. Note that string constants are usually "interned" such that two constants with the same value can actually be compared with `==`, but it's better not to rely on that.
if (usuario.equals(datos[0])) {
...
}
NB: the compare is done on 'usuario' because that's guaranteed non-null in your code, although you should still check that you've actually got some tokens in the `datos` array otherwise you'll get an array-out-of-bounds exception.
Problem
This code separates a string into tokens and stores them in an array of strings, and then compares a variable with the first home ... why isn't it working? ``` public static void main(String...aArguments) throws IOException { String usuario = "Jorman"; String password = "14988611"; String strDatos = "Jorman 14988611"; StringTokenizer tokens = new StringTokenizer(strDatos, " "); int nDatos = tokens.countTokens(); String[] datos = new String[nDatos]; int i = 0; while (tokens.hasMoreTokens()) { String str = tokens.nextToken(); datos[i] = str; i++; } //System.out.println (usuario); if ((datos[0] == usuario)) { System.out.println("WORKING"); } } ```