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length()

How to find the length of a string in Java

Educative Answers Team

The length of a string is referred to as the total number of characters it contains.

The length() method

To calculate the length of a string in Java, you can use an inbuilt length() method of the Java string class.

In Java, strings are objects created using the string class and the length() method is a public member method of this class. So, any variable of type string can access this method using the . (dot) operator.

The length() method counts the total number of characters in a String.

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Method signature

The signature of the length() method is as follows:

public int length()

The return type of the length() method is int.

Example

Let’s calculate & printout the length of a string using the length() method.

class CalcLength {
    public static void main( String args[] ) {
       String name = "educative";  //Initilizing a String Object name
       int length = name.length();  //Calling the inbuilt lenght() method
       System.out.println("The length of the String \""+name+"\" is: " +length);    }
}

The length of the string name is 9:

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java
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length()
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