Chapter 1 – Basics | Practice Golang for Beginners

📘 Chapter Overview

Welcome to your first step into Go 🚀

In this chapter, you will learn the fundamental building blocks of Go programming.
Everything you learn here will be used throughout the rest of the course.

This chapter focuses on understanding how Go programs are structured and how basic logic works.

🎯 What You Will Learn

By the end of this chapter, you will be able to:

✅ Understand Go program structure
✅ Declare and use variables
✅ Work with basic data types
✅ Use constants
✅ Take input and print output
✅ Write conditional statements (if, switch)
✅ Use loops (for)
✅ Write simple functions

🧠 Core Concepts Covered

1️⃣ Program Structure

Understanding:

package main

import "fmt"

func main() {
    fmt.Println("Hello, Go!")
}

package main
import
func main()

2️⃣ Variables and Data Types

int
float64
string
bool

Examples:

var age int = 25
name := "Alice"

3️⃣ Constants

const Pi = 3.14

4️⃣ Control Flow

✅ If Statement

if age > 18 {
    fmt.Println("Adult")
}

✅ Switch Statement

switch day {
case "Monday":
    fmt.Println("Start of week")
}

5️⃣ Loops (Go Has Only One Loop – `for`)

for i := 0; i < 5; i++ {
    fmt.Println(i)
}

While-style loop:

for condition {
    // logic
}

6️⃣ Functions (Introduction)

func add(a int, b int) int {
    return a + b
}

🚀 Why This Chapter Matters

This chapter builds your:

Logical thinking
Syntax familiarity
Confidence writing Go programs

Without mastering basics, advanced topics like:

Structs
Concurrency
HTTP services
Production systems

will feel overwhelming.

✅ Before Moving to Chapter 2

Make sure you can:

Write a Go program without looking at examples
Use conditionals confidently
Write loops without confusion
Define and call simple functions

If not — practice more exercises before proceeding.

🏁 Next Step

Continue to:

➡ Study Material
➡ Exercises
➡ Solutions

Take your time. Strong foundations matter.