Java String length()

In this tutorial, we will learn about the Java String length() method with the help of examples.

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

Example

class Main {
  public static void main(String[] args) {
      String str1 = "Java is fun";

System.out.println(str1.length());
} } // Output: 11

Syntax of length()

The syntax of the length() method is:

string.length()

Here, string is an object of the String class.


length() Parameters

  • The length() method doesn't 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 "Java\n" string is 5 instead of 6. It is because \n is a single character (newline) in Java.

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