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C# Intermediate C# System.Object Object.Equals

Leo Ngai
Leo Ngai
2,184 Points

It always say compile error

It always say compile error

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

        public override bool Equals(object obj)
        {
            if(Word == obj.Word)
            {
                return true;
            }
            else
            {  
                return false;
            }
        }

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

        public override string ToString()
        {
            return Word;
        }
    }
}

2 Answers

Steven Parker
Steven Parker
218,692 Points

:point_right: You've skipped a couple of steps.

Before you can access the .Word property of the passed argument, you must cast it to the proper type (VocabularyWord) and check to be sure it is not null. You can confirm the type and check for null at the same time with the "is" operator.

There's an example of these steps shown in the Object.Equals video that precedes this challenge — you might want to re-watch it for more details.

Leo Ngai
Leo Ngai
2,184 Points

Thanks. I got it resolved by following your suggestions!