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C# Intermediate C# System.Object Object.Equals

Nir Klein
Nir Klein
7,353 Points

Regarding 'Equals' override

Hi there, I've been working on the following challenge: https://teamtreehouse.com/library/intermediate-c/systemobject/objectequals

The challenge is about overriding 'Equals' in 'VocabularyWord' class.

Get someone share a hint about what I might missing here? (attached my code)

Thanks!

VocabularyWord.cs
using System;
namespace Treehouse.CodeChallenges
{
    public class VocabularyWord
    {
        public string Word { get; private set; }

        public VocabularyWord(string word)
        {
            Word = word;
        }

        public override string ToString()
        {
            return Word;
        }

        public override bool Equals(object obj)
        {
            if(obj != null)
            {
                string checkThat = obj as string;

                if(Word.Length != checkThat.Length)
                {
                    return false;   
                }

                for(int i = 0; i < Word.Length; i++)
                {
                    if(Word[i] != checkThat[i])
                    {
                        return false;   
                    }
                }
                return true;
            }
            else
            {
                return false;   
            }
        }
    }
}

2 Answers

Steven Parker
Steven Parker
229,005 Points

You're close! But the objects being compared are both VocabularyWord objects, so it doesn't make sense to cast one as a string. Instead, you can cast it to a VocabularyWord and then access the Word inside it:

                string checkThat = (obj as VocabularyWord).Word;

Once you've done that, the rest of the code will work, but you really only need to compare the strings directly:

                return Word == checkThat;
Nir Klein
Nir Klein
7,353 Points

It works! thanks!