Singleton Pattern in Kotlin with object keyword?

Answer

In Kotlin, the object keyword is the idiomatic way to create a Singleton.

Features

• Thread Safety: It is thread-safe by default. The instance is created lazily when the class is first accessed.
• Simplicity: No need for static blocks, double-checked locking, or private constructors.

Copy codeobject Database {
    val name = "MainDB"
    fun connect() { ... }
}

// Usage
Database.connect()

Under the hood, it compiles to a Java class with a static INSTANCE field.