Java String length() Usage and Example

Java String (String) Methods

The Java String length() method returns the length of the string.

The syntax of the length() method is:

string.length()

length() Parameters

• The length() method does not take any parameters.

length() Return Value

• The length() method returns the length of the given string.

The length is equal to the number of char values (code units) in the string.

Example: Java String length()

class Main {
　　　　public static void main(String[] args) {
　　　　　　　　String str1　= "Java";
　　　　　　　　String str2　= "";
　　　　　　　　System.out.println(str1.length());　　//　4
　　　　　　　　System.out.println(str2.length());　　//　0
　　　　　　　　System.out.println("Java".length());　　//　4
　　　　　　　　System.out.println("Java\n".length());　//　5
　　　　　　　　System.out.println("Learn Java".length());　//　10
　　　　}
}

In the above program, the length of the 'Java\n' string is5Instead of6This is because '\n' in Java is a single character (newline).

Java String (String) Methods