length() - String Methods in Java


This article is a part of String Methods in Java.
The length() method returns the length of the specified string.


Return type

The return type for length() method is int. The length of an empty string is 0. Let us look at an example code.


Output

Let us look at the output of the above.

String Methods length()
Fig.1- String Method - length()

Note: The charAt() method starts its counter from 0 whereas length() starts its counter from 1. However, the length of an empty string is 0.
While we are at it, let us look at another method related to length().

isEmpty()

The isEmpty() method checks if the string is empty or not. It works on the method length() by checking if the length() of the string is 0 or not.

Return type

The return type of isEmpty() method is Boolean. It returns true if the string is empty and false otherwise.
Let us look at an example code.


Output

Let us look at the output of the above.

String Methods isEmpty()
Fig.2- String Method - isEmpty()

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Author : Satyam Kumar -



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