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Complete the main method in the StringPrinter class by: Declaring an instance of a String variable called message, which stores the user’s response when asked to “Input string: “.Using a for loop to print each character stored inside the message variable.(Hint: use the .length() and .charAt() methods for String objects)

Question

Complete the main method in the StringPrinter class by: Declaring an instance of a String variable called message, which stores the user’s response when asked to “Input string: “.Using a for loop to print each character stored inside the message variable.(Hint: use the .length() and .charAt() methods for String objects)

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Solution

Here is a step-by-step guide to complete the main method in the StringPrinter class:

  1. First, you need to import the Scanner class from the java.util package. This class is used to get input from the user.
import java.util.Scanner;
  1. Next, declare the StringPrinter class and the main method.
public class StringPrinter {
    public static void main(String[] args) {
        // code goes here
    }
}
  1. Inside the main method, declare an instance of the Scanner class. This will be used to get the user's input.
Scanner scanner = new Scanner(System.in);
  1. Prompt the user to input a string and store the response in a String variable called message.
System.out.println("Input string: ");
String message = scanner.nextLine();
  1. Now, use a for loop to iterate over each character in the message. The .length() method is used to get the length of the string, and the .charAt() method is used to get the character at a specific index.
for (int i = 0; i < message.length(); i++) {
    System.out.println(message.charAt(i));
}
  1. Finally, close the scanner object to prevent memory leaks.
scanner.close();

Here's the complete code:

import java.util.Scanner;

public class StringPrinter {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Input string: ");
        String message = scanner.nextLine();

        for (int i = 0; i < message.length(); i++) {
            System.out.println(message.charAt(i));
        }

        scanner.close();
    }
}

This program will print each character of the user's input string on a new line.

This problem has been solved

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