Scala Interview Question: Difference between a Class and an Object in Scala

In Scala, a class is a blueprint or template for creating objects, which are instances of that class. Here are the key differences between a class and an object in Scala:

• Definition: A class in Scala is a type that defines the structure and behavior of objects. An object, on the other hand, is a single instance of a class.
• Instantiation: Classes can be instantiated to create multiple objects, each with its own state. Objects are already instantiated and exist as single instances.
• Static Members: Classes can have static members (fields and methods) that belong to the class itself. Objects cannot have static members and can only have instance members.
• Companion Objects: In Scala, classes can have companion objects, which are singleton objects with the same name as the class. Companion objects can access private members of the class.

Understanding the distinction between classes and objects in Scala is essential for developing scalable and maintainable applications.