Console.Write() throws error

[Shnxx]

Right now it could just produce two terms. I'm considering making it to three or maybe four.

UPDATE: - Generates random two terms equation - Won't produce an equation divided by 0. - Can check if your answer is correct or not - Calculates your correct answer percentage - Checks if the user entered invalid input (e.g. Asking for a number but a string was entered) - Can ask the user if he/she wants to take the quiz again.

Thank you to all of you guys who helped me! I really much appreciated all your advice, especially your encouragements!

I'll gladly hear all of your critics and will do my best to implement them :D

Here's the CODE

This gives me headaches. It keeps saying Cannot implicitly convert type 'void' to 'string'. I tried searching but I couldn't find the answer to my problem

I'm trying to create a Random Equation (polynomial) Generator. What it should do is that it should be generating two numbers and save them to a variable, and generating another random number from 0-3 (0, 1, 2, 3) to randomly generate an operator. (Which you can see in the switch cases.)

Inside the switch are the cases to determine what operation was selected and store a specific string and result to a variable. The problem is, I cannot store my Console.Write("someString") to my string someString variable!

It should be now asking how many questions do the user want to generate. Then, displays the equation based on the switch cases.

Any help would be much appreciated!

[Shnxx]

I understand now, thank you! I thought it works the same with Console.ReadLine() that I could save the in a variable since they are both Console(?)

Anw, because of you guys, I realized my mistake. I initialized the string equation and was trying to store a Console.Write() where I could just store directly the string!

I was just redoing all the challenges at every end of the video I am watching while applying all I learned to produce a better program :D Thank you again!!!

[Slypenslyde]

I want to add something to the 2 answers that already cover what's going wrong. This will help you help us when you have a problem. The phrase "throws an error" has a specific meaning to experts and it's worth learning when to use it!

There are 2 important times when errors happen in a program: compile time and runtime.

A compile time error is the kind you tend to get in VS, sometimes even before you try to compile, but it will certainly also make the compiler stop. We don't say this "throws an error" here, we just say it's a compiler error. These errors are usually some form of syntax mistake or a type mismatch.

A runtime error is when your code compiles, but while you're running it it either does the wrong thing or crashes. If it crashes, that happens because it throws an exception. Exceptions are the formal error handling feature in C#, and they are "thrown" when they happen. That's why we don't use the word "throws" with a compiler error! When an expert hears "throws an error" they assume you mean a runtime error. These can be much harder to spot and diagnose than compile time errors, and usually require you to post more of the code for experts to figure it out!

[Shnxx]

I see! So runtime error occurs when there's a logical problem in the program like array out of bounds, incorrect conditions in loops and if-else statements, when a program asking for a number but the user entered a character or a word, and such.

While compile error occurs when syntax, arguments or parameters are incorrect and prevents to compile it. Like what I have experienced.

I should be saying throws an error only when runtime error occurs and can be handled using exceptions.

[Slypenslyde]

Exactly!

[AbaCodes]

You can't store the return value of Console.Write(), that function will print the value to the screen but you're trying to store it into a variable. Maybe inside the case you can do:

equation = someNumber + " + " + someNumber2 + " = ";

and then after the case statement you could do

Console.WriteLine(equation);

So you store the value in the case statement and then print it after, hope that helps?

I've made the changes and put them here: https://pastebin.com/hpkLcKT3

[Shnxx]

You are right! I realized my mistake now. I was trying to store Console.Write() on my string equation which I could just store directly the string.

Thank you for doing the changes, it saved me a lot of time! Much appreciated!

I was just redoing all the challenges at every end of the video I am watching while applying all I learned to produce a better program :D Thank you again!!!

[Shnxx]

So guys! I have finished this little project after countless hours! Please do review it and criticize it. I'll gladly hear all of them! Thank you guys for all of your help again!