1. Introduction

Finding the length of a string is a basic and frequently used operation in programming. In Java, this can be done using the length() method, which is a part of the String class. The length() method returns the number of characters in a given string.

2. Program Steps

1. Define the main method, which is the entry point to the program.

2. Declare and initialize a String variable.

3. Use the length() method of the String class to find the length of the string.

4. Print the length of the string to the console.

3. Code Program

public class StringLength {
    public static void main(String[] args) {
        // Step 2: Declare and initialize a String variable
        String str = "Hello, World!";

        // Step 3: Use the length() method of the String class to find the length of the string
        int length = str.length();

        // Step 4: Print the length of the string to the console
        System.out.println("The length of the string \"" + str + "\" is: " + length);
    }
}

Output:

The length of the string "Hello, World!" is: 13

4. Step By Step Explanation

– Step 1: The main method is declared as the entry point to the program.

– Step 2: A String variable str is declared and initialized with the value "Hello, World!".

– Step 3: The length() method of the String class is used on the str variable to find the number of characters in the string. The result is stored in the integer variable length.

– Step 4: The length of the string is printed to the console along with the original string for clarity.