Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# Intermediate C# System.Object Object.Equals

Posted by Chris Gauthier
Chris Gauthier
Courses Plus Student 6,434 Points

Using Equals in C# Intermediate Level Course

Im uncertain what Im doing wrong here, thanks in advance.

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) 
        {
            return Word == obj;
        }
    }
}

1 Answer

Emmanuel C
Emmanuel C
10,636 Points
Emmanuel C
Emmanuel C
10,636 Points

First you want to check if the obj being passed in is a VocabularyWord. If not then return false.

if(!(obj is VocabularyWord))
{
    return false;
}

If it is then you have to cast the obj into a VocabularyWord object.

VocabularyWord vWord = obj as VocabularyWord;

Then you can compare the words and return the results

return this.Word == vWord.Word;

Hope that helps, Happy coding.

Krystin White
Krystin White
1,887 Points

This comment explains Equals perfectly! I had trouble understanding it from the video AND from the Docs. Thank you so much for breaking it down! :)