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Recap - If Else

Part of the Fundamentals section of Coddy's C# journey — lesson 29 of 69.

Challenge

Beginner

You are given a code which gets as input two numbers n1 and n2 and a single char string op.

Note: we will learn in next lessons how to get input from the user, currently just don't touch the three first lines.

The possible values for op are '+', '-', '/' and '*'

Your task is to set the variable result based on the conditions:

if op is '+', set result with n1 + n2.
if op is '-', set result with n1 - n2.
if op is '/', set result with n1 / n2.
if op is '*', set result with n1 * n2.

Try it yourself

using System;

public class Program {
    public static void Main(string[] args) {
        int n1 = int.Parse(Console.ReadLine());
        int n2 = int.Parse(Console.ReadLine());
        string op = Console.ReadLine();
        
        // Write your code below
        double result = 0;
        
        
        
        Console.WriteLine(result);
    }
}

All lessons in Fundamentals

1Introduction

C#Hello World!Comments Basic Program Structure

4Operators Part 1

Arithmetic Operators Modulo Operator Increment/Decrement Post Increment/Decrement Arithmetic Shortcuts

7Basic IO

Basic Output String Interpolation Reading Input Parse Recap - Till 120 Recap - True or False

10Methods (Functions)

Declaring Methods Method Parameters Return Types Optional Parameters Recap - Validation Function Void Methods

13Iterating Over Collections

Using For Loop Foreach Loop Common Array Operations

2Variables Part 1

Numbers Char String Boolean Type Declaration

5Operators Part 2

Comparison Operators Logical Operators Part 1 Logical Operators Part 2 Recap - Simple Logic Logical Operators Part 3

8Calculator App

Welcome Message Getting Numbers

Project lesson

Basic Operations

Project lesson

Formatted Output

Project lesson

11Arrays Basics

Declaring Arrays Accessing Elements Modifying Arrays Array Methods Recap - Product Array Edit Recap - Reversed Array

14Final Challenges

Number Pattern Pattern Finder Student Grade Calculator

3Variables Part 2

Var Constants Naming Conventions Recap - Initialize Variables Type Casting

6Decision Making

If Statement If - Else Switch Statement Ternary OperatorRecap - If ElseNested If - Else

9Loops

For Loop While Loop Do While Loop Break Continue Nested Loop Infinite Loop Recap - Dynamic Input

12String Operations

String Methods Part 1 String Methods Part 2 String Formatting