There is no argument that corresponds to the formal parameter

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I am getting multiple "there is no argument that corresponds to the formal parameter errors and I can't figure out why. Most are related to my 'BrewMethod'

Here is the code

<pre>public class CoffeeMaker
{
	public string flavor;
	public string power;
	public string s;
	public string lid;
	public string water;
	public void PowerMethod()
	{ 

		string power = "on";
		Console.WriteLine("Coffee Maker is now on.");
		BrewMethod(power);
		CupMethod(power);
		WaterMethod(power);
		SizeMethod(power);
	}
	public void CupMethod(string power)
	{
		if (power == "on")
		{
			Console.WriteLine("Enter flavor of the pod.");
			string flavor = Console.ReadLine();

			BrewMethod(flavor);
		}
		else
		{
			Console.WriteLine("Please turn on coffee maker");
		}
	}
	
	public void WaterMethod(string power)
	{

		if (power == "on")
		{
			int waterAmount;

			Console.WriteLine("In ounces between 6 and 42, enter the amount of water that will be put in.");
			waterAmount = int.Parse(Console.ReadLine());

			if (waterAmount > 42 || waterAmount < 6)
			{
				Console.WriteLine("Enter a valid amount.");
			}

			else
			{
				string water = "enough";
				BrewMethod(water);
			}
		}
		else
		{
			Console.WriteLine("Please turn on coffee maker");
		}
	}


	public void SizeMethod(string power)
	{ 
		if (power == "on")
		{
			int size;

			Console.WriteLine("What size coffee?");
			Console.WriteLine("- Enter 1 for small");
			Console.WriteLine("- Enter 2 for medium");
			Console.WriteLine("- Enter 3 for large");

			size = int.Parse(Console.ReadLine());


			if (size < 1 || size > 3)
			{
				Console.WriteLine("Enter a valid size.");

			}

			if (size == 1)
			{
				string s = "small";
				BrewMethod(s);
			}

			if (size == 2)
			{
				string s = "medium";
				BrewMethod(s);
			}

			if (size == 3)
			{
				string s = "large";
				BrewMethod(s);
			}
		}
		else
		{
			Console.WriteLine("Please turn on coffee maker.");
		}
	}
		public void LidMethod()
		{
				Console.WriteLine("Lid has been closed.");
				string lid = "closed";
				BrewMethod(lid);
	}

	public void BrewMethod(string power, string flavor, string lid, string s, string water)
	{
		if (power != "on")

		Console.WriteLine("Lid has been closed.");
		
	}

}

What I have tried:

using base but it just throws an 'unexpected character' error and doesn't do anything about the other errors.

Posted 8-Mar-20 8:30am

Member 14637431

Updated 8-Mar-20 23:11pm

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Tony Hill · Answer 1 · 2020-03-08T09:46:00

The reason for the error is that the method signature of the BrewMethod states that it expects five string arguments called power, flavour, lid, s and water.

public void BrewMethod(string power, string flavor, string lid, string s, string water)

However when you call the BrewMethod method from other methods you only call it with one argument.

public void PowerMethod()
{
    string power = "on";
    Console.WriteLine("Coffee Maker is now on.");
    BrewMethod(power);    <------ Called with one argument whereas fivearguments are expected
    CupMethod(power);
    WaterMethod(power);
    SizeMethod(power);
}

You must therefore provide the missing arguments to the BrewMethod wherever you call it.

Richard MacCutchan · Answer 2 · 2020-03-08T23:12:00

Your BrewMethod definition includes four parameters that are not used. Redefine it as:

C#

public void BrewMethod(string power)
{
    if (power != "on")
        Console.WriteLine("Lid has been closed.");    
}

[edit]
However, after looking more closely, you have other methods calling BrewMethod with different value types. That will not work since BrewMethod can only handle a single parameter. You need to change it to handle the different types (try a set of enums), so it will need an enum type and its value. Something like:

C#

enum brewtypes{ power, water, ... etc.};

public void BrewMethod(brewtypes type, string value)
{
    if (type == brewtypes.power && value != "on")
        Console.WriteLine("Lid has been closed.");    
}

[/edit]

There is no argument that corresponds to the formal parameter

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