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Module 2: C# Basics

Core programming concepts and syntax fundamentals.

Duration: 90 minutes

Learning Objectives

  • • Understand variables and data types in C#
  • • Learn to use control structures (if/else, loops, switch)
  • • Define and call methods
  • • Understand basic class structure
  • • Perform basic debugging in Visual Studio Code

Key Topics

Variables and Data Types

Understanding how to store and manipulate different types of data.

int age = 25;
string name = "John";
bool isStudent = true;
double salary = 50000.50;

Control Structures

Making decisions and repeating actions in your code.

if (age >= 18)
{
    Console.WriteLine("Adult");
}
else
{
    Console.WriteLine("Minor");
}

for (int i = 0; i < 5; i++)
{
    Console.WriteLine($"Count: {i}");
}

Methods and Classes

Organizing code into reusable blocks and object blueprints.

public class Student
{
    public string Name { get; set; }
    public int Age { get; set; }
    
    public void DisplayInfo()
    {
        Console.WriteLine($"Name: {Name}, Age: {Age}");
    }
}

Basic Debugging

Using breakpoints and stepping through code to find and fix errors.

Hands-on Exercises

Exercise 1: Simple Calculator

Create a calculator that performs basic arithmetic operations (+, -, *, /).

Exercise 2: Student Grade Calculator

Write a program that determines student grade based on marks (A, B, C, D, F).

Exercise 3: Number Guessing Game

Create a game where users guess a random number between 1-100.

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