Java - String String Length

Introduction

String class contains a length() method that returns the number of characters in the String object.

length() method returns the number of characters in the string, not the number of bytes used by the string.

return type of the method length() is int.

The following code computes the length of a string. The length of an empty string is zero.

Demo

public class Main {
  public static void main(String[] args) {
    // Create two string objects
    String str1 = new String();
    String str2 = new String("Hello");

    // Get the length of str1 and str2
    int len1 = str1.length();
    int len2 = str2.length();

    // Display the length of str1 and str2
    System.out.println("Length of \"" + str1 + "\" = " + len1);
    System.out.println("Length of \"" + str2 + "\" = " + len2);
  }/*  ww w .  ja v a2 s  .  com*/
}

Result

Exercise