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C# C# Objects Object-Oriented Programming Initialization

Justin Ramirez
Justin Ramirez
4,915 Points
Posted by Justin Ramirez
Justin Ramirez
4,915 Points

Need help understanding this problem " Use the constructor to initialize the TongueLength field to the value passed in."

I don't understand what it means when it says " value passed in?"

Frog.cs 
namespace Treehouse.CodeChallenges
{
    class Frog
    {
        public readonly int TongueLength;

        public Frog (int TongueLength)
        {
           int TongueLength =  TongueLength;
        }

    }
}

1 Answer

Ted Dunn
Ted Dunn
43,783 Points

The value passed in is the argument TongueLength which is the variable inside the parentheses of the Frog constructor. Your code will not pass because you need to set the field of TongueLength which was declared outside of the constructor (public readonly int TongueLength) to the value of the TongueLength which was supplied as the argument in the constructor (public Frog(int TongueLength).

You need to invoke the keyword 'this' on the field and set it equal to the argument.

public Frog(int TongueLength) 
{
    this.TongueLength = TongueLength;
}
Justin Ramirez
Justin Ramirez
4,915 Points
Justin Ramirez
Justin Ramirez
4,915 Points

Thank you very much for your help the code did work.

Grigor Samvelian
Grigor Samvelian
2,852 Points
Grigor Samvelian
Grigor Samvelian
2,852 Points

Didn't learn anything about the keyword this before the challenge, it was the correct answer but i'm having trouble understanding the purpose of the keyword this, if anyone could elaborate on how it help solve this challenge it would be appreciated and great.