CourseGenix

Go fundamentals

7 Units35 Lessons

Unit 1

Basics

Introduction to Go Language

Understanding Basic Program Structure

Real-World Project: Simple Greeting Tool

Writing Your First Go Program

Installing Go and Environment Setup

Unit 2

Variables and Data Types

Declaring and Initializing Variables

Understanding Basic Data Types

Working with Constants

Type Conversions and Casting

Real-World Project: Data Tracker Application

Unit 3

Control Structures

Understanding Switch Statements

Real-World Project: Simple Decision-Making Tool

Using If-Else Statements

Nesting and Combining Control Structures

Working with For Loops

Unit 4

Functions

Passing Parameters and Arguments

Function Variadic Parameters

Real-World Project: Utility Function Library

Defining and Calling Functions

Return Values and Multiple Returns

Unit 5

Packages and Modules

Importing External Packages

Understanding Go Modules

Real-World Project: Modular Code Organizer

Package Visibility and Exporting

Creating and Using Packages

Unit 6

Error Handling

Basics of Error Types

Panic and Recover Mechanisms

Defer Statements for Cleanup

Real-World Project: Error-Resilient Tool

Using the Error Interface

Unit 7

Concurrency Basics

Introduction to Goroutines

Working with Channels

Synchronization Techniques

Common Concurrency Patterns

Real-World Project: Concurrent Data Processor

Unit 1•Chapter 4

Writing Your First Go Program

Summary

Provide a summary that is 250 words or less, focuses solely on the main topic, and avoids mentioning sponsors or unrelated content, without any introductory statements.

Concept Check

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What is the entry point function in a Go program?

The start function.

The main function in package main.

The run function.

The init function.

Why must Go programs have a main package?

For importing other packages.

To designate the executable entry point.

To handle errors globally.

For defining global variables.

What error occurs if fmt is not imported in Go?

Program runs but crashes.

Runtime panic error.

Undefined identifier for fmt functions.

Compilation succeeds anyway.

In Go, how is the main function defined?

Inside a struct.

With a return type.

As main() without func keyword.

As func main() in package main.

What is required for a Go program to compile?

At least one import statement.

Comments at the top.

A main function in main package.

Global variables defined.

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