Find all occurrences of the word “the” without using regex

I have an assignment to find all occurrences of the word “the” without using regex:

Use the indexOf method to do this. The word “the” could also appear in a larger word, such as “Theresa” or “other”.

Please confirm if this is the best way to do that.

import java.util.Scanner;

public class TheFinder

{

    public static void main(String[] args)

    {

        int theCounter;

        int indexOfThe = 0;
        Scanner input = new Scanner(System.in);

        System.out.print("Enter a sentence with a word "the"" or type ""quit"" to quit: "");
Solution