public static int parseInt(String s) throws NumberFormatException { … } Instance method of a particular object instance. Sometimes we need a way to refer to a method of an existing object instance.

The Long.parseLong() method returns a long primitive, not a wrapper.; The Long.parseLong() method uses the Long class, which is semantically correct. The Long.parseLong() method does not require ...

In the above example of Java’s String length method, the output for the size of the String is 25. The String length method includes the whitespace padding at the beginning and the end of the String.