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🚀 Java Interview Questions – Episode 13
💡 What is the Singleton pattern in Java?

The Singleton pattern is a creational design pattern that ensures a class has only one instance throughout the application — and provides a global point of access to it.

🔒 Why use it?
Useful for shared resources (e.g., config manager, logger, connection pool)
Prevents multiple instances from being created, saving memory and ensuring consistency

🛠️ How does it work?
Private constructor to restrict instantiation
Static field to hold the single instance
Public static method to return the instance

public class Singleton {
private static final Singleton instance = new Singleton();
private Singleton() {}
public static Singleton getInstance() {
return instance;
}
}
💡 Use Singleton when you need one and only one instance — nothing more!

#Java #JavaInterview #Singleton #DesignPatterns #OOP #CodingInterview #JavaTips #interviewprep

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