guessword codecheck v1

GuessWord.java

/*
 * GuessWord.java
 *
 *  @author EZRA GOLDNER <[email protected]>
 */
import java.lang.reflect.*;
public class GuessWord {
    // There may be instance variables, constructors, and methods that are not shown.
    private String word;
    
    public GuessWord(String word) { this.word = word; }
    
    public int length() { return this.word.length(); }
    /**
     * Return a hint for hidden word based on guess, such that:
     * If the letter in the guess is...            | corresponding character in the hint is...
     * also in same position in hidden word        | matching letter
     * also in hidden word, but different position | "+"
     * not in hidden word                          | "*"
     * Precondition: guess.length() is the same as the length of the hidden word.
     *
     * @param guess guess for hidden word
     * @return hint for hidden word
     */
    public String getHint(String guess) {
        String hint = "";
        for (int i = 0; i < length(); i++) {
           char letter = guess.charAt(i);
           if (letter == word.charAt(i)) {
              hint += letter;
           }
           else if (word.contains(String.valueOf(letter))) {
              hint += "+";
           }
           else {
              hint += "*";
           }
        }
        return hint;
    }
}