Java’s String class encapsulates an array of bytes.A byte can be converted to a char, in which case, String becomes an array of characters used to compose words, sentences, or any other data you ...

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 ...

Using Java’s String length method. To get the number of characters in a given piece of text, the Java String length() method is all you need. Just make sure the String is not null, and avoid any ...