Write code which takes a sentence as an input from the user and then prints the length of the first word in that sentence. Hint #1: think about how you know where the first word ends - you may assume that the sentence contains more than one word. Hint #2: To make your life easier, use a string method that utilizes space. It looks kind of looks like this: String.method(" "). Sample run 1: Enter a sentence: Everything in its right place 10 Sample run 2: Enter a sentence: Down is the new up

Question

in java

Answer 1

In Java, you can accomplish this task by using the split method of the String class to separate the words based on spaces. Here's how you could write the program:

import java.util.Scanner;

public class FirstWordLength {
    public static void main(String[] args) {
        // Create a Scanner object to read input
        Scanner scanner = new Scanner(System.in);
        
        // Prompt the user for input
        System.out.print("Enter a sentence: ");
        String sentence = scanner.nextLine();
        
        // Split the sentence into words
        String[] words = sentence.split(" ");
        
        // Get the first word
        String firstWord = words[0];
        
        // Print the length of the first word
        System.out.println("Length of the first word: " + firstWord.length());
        
        // Close the scanner
        scanner.close();
    }
}

Explanation:

1. Scanner: We use a Scanner object to read user input.
2. Input Prompt: The user is prompted to enter a sentence.
3. Split Method: The sentence is split into an array of words using the split(" ") method, which separates the string at each space.
4. First Word: We access the first element of the array words[0], which corresponds to the first word of the input sentence.
5. Length Calculation: Lastly, we print the length of the first word using the length() method.

You can run this code, and it will behave as specified in your request!