Stop Using Switch! Use Map for Instant Lookups (Java Example)

🚀 Introduction

Tired of writing switch-case statements? Let’s replace them with a Map for cleaner and more maintainable code. No theory—just code!

Stop Using Switch! Use Map for Instant Lookups (Java Example)

Story List Categories:

• About Me & List of Stories
• Java — All things Java-related.
• Java Interview Playbook: Your Go-To Reading List — For interview preparation.
• JAVA-8 — Dedicated to Java 8 topics.
• Spring Boot & Spring — Focused on Spring and Spring Boot.
• Microservices Topics List — Covering various microservices to

📝 The Problem: Too Many Switch Cases

public class RoleService {
    public static String getRole(String userType) {
        switch (userType) {
            case "ADMIN":
                return "Full Access";
            case "USER":
                return "Limited Access";
            case "GUEST":
                return "Read-Only";
            default:
                return "No Access";
        }
    }
}

It’s fine for a few cases, but what if we have 10+ cases? Let’s simplify this using a Map.

✅ The Solution: Use a Map Instead