Parsing input to numeric types in C Sharp (C#) - Mini Project: Build & Apply

Parsing input to numeric types

📖 Scenario: You are creating a simple console program that asks the user to enter two numbers. The program will then add these numbers and show the result.

🎯 Goal: Build a program that reads two numbers as text input, converts them to numeric types, adds them, and prints the sum.

📋 What You'll Learn

Read user input as strings

Convert input strings to integers using parsing

Add the two integers

Print the sum

💡 Why This Matters

🌍 Real World

Parsing input is essential when programs receive data as text, such as from users or files, and need to convert it to numbers for calculations.

💼 Career

Many programming jobs require handling user input and converting data types safely and correctly to build reliable applications.

1

Create variables to store user input

Create two string variables called input1 and input2 and assign them the values "5" and "7" respectively.

C Sharp (C#)

# Create two string variables input1 and input2 with values "5" and "7"
// Your code here

Need a hint?

Use string input1 = "5"; and string input2 = "7"; to create the variables.

2

Create integer variables to hold parsed numbers

Create two integer variables called number1 and number2 and assign them the parsed integer values of input1 and input2 using int.Parse().

C Sharp (C#)

string input1 = "5";
string input2 = "7";
// Parse input1 and input2 to integers number1 and number2
// Your code here

Need a hint?

Use int.Parse(input1) and int.Parse(input2) to convert strings to integers.

3

Add the two numbers

Create an integer variable called sum and assign it the sum of number1 and number2.

C Sharp (C#)

string input1 = "5";
string input2 = "7";
int number1 = int.Parse(input1);
int number2 = int.Parse(input2);
// Add number1 and number2 and store in sum
// Your code here

Need a hint?

Use int sum = number1 + number2; to add the numbers.

4

Print the sum

Write a Console.WriteLine statement to print the text "Sum: " followed by the value of sum using string interpolation.

C Sharp (C#)

string input1 = "5";
string input2 = "7";
int number1 = int.Parse(input1);
int number2 = int.Parse(input2);
int sum = number1 + number2;
// Print the sum with Console.WriteLine
// Your code here

Need a hint?

Use Console.WriteLine($"Sum: {sum}"); to print the result.