Go Exam Preparation - Comprehensive Study Guide

A comprehensive project for Go MCQ exam preparation focusing on:

• Standard Library ONLY (No third-party dependencies)
• Edge Cases and Traps
• Zero Values and Initialization
• Memory Behavior and Pointers

Project Structure

Stage 1: Basics and Types (stage1_types_and_variables/)

• Variable Declarations and Scope
• Zero Values
• Type Conversions
• Strings, Bytes, and Runes

Stage 2: Control Flow (stage2_control_flow/)

• If/Else Statements
• Switch Statements (with fallthrough)
• Loops (for and range)

Stage 3: Data Structures (stage3_data_structures/)

• Arrays vs. Slices
• Maps
• Structs and Composition

Stage 4: Functions and Pointers (stage4_functions_pointers/)

• Functions and Multiple Returns
• Pointers and Memory Addresses
• Methods (Value vs. Pointer Receivers)

Stage 5: Error Handling (stage5_error_handling/)

• The error Interface
• The defer Statement
• panic and recover

Stage 6: Interfaces and Concurrency (stage6_interfaces_concurrency/)

• Interfaces and Implicit Implementation
• Type Assertions
• Goroutines and Channels

Stage 7: Standard Library (stage7_stdlib/)

• fmt, strings, strconv
• io, os, encoding/json
• time, math, math/rand

How to Use This Repository

To run the examples in any stage, you must navigate into that stage's directory and run the entire package together using go run ..

Do NOT run individual files (like go run 1_variables.go) because the functions are shared across the package.

Example Usage:

# 1. Open your terminal and navigate to the project directory (LearnGo)

# 2. Enter a specific stage
cd stage1_types_and_variables

# 3. Run all files in that stage together
go run .

After running the code, open the files in your editor and read the detailed English comments to understand the "Why" behind the code.

Essential Files

• EXAM_NOTES.md - Golden tips, edge cases, and traps. Review this right before the exam.
• SAMPLE_MCQ.md - Practice questions with explanations. Test your knowledge.