Basic OOP

What is an object in object-oriented programming (OOP)?

• A basic entity that represents a specific instance of a class.

• A template for creating objects.

• A structure for storing simple data types.

• A contract that classes must implement.

What defines the properties and methods that objects of a class will have?

• Object

• Class

• Struct

• Interface

What is a struct used for?

• To store simple data types.

• To define a contract for classes.

• To represent a specific instance of a class.

• To define properties and methods.

What does an interface define?

• A contract that classes must implement.

• A template for creating objects.

• A structure for storing simple data types.

• A basic entity in OOP.

What do access modifiers determine?

• The visibility of class members.

• The methods available in a class.

• The properties of a struct.

• The inheritance of a class.

What is a constant?

• Defined only once at compile time.

• Can be changed at runtime.

• Supports all data types.

• Initialized at runtime.

What is the difference between override and new?

• Override always calls the latest implementation.

• New preserves the original implementation.

• Both are the same.

• Override cannot be used in derived classes.

What is the purpose of IEnumerable?

• Allows iteration over a collection without modifying it.

• Extends ICollection and adds methods for modifying collections.

• Represents a collection of key-value pairs.

• Supports random access to elements by index.

What does ICollection add to IEnumerable?

• Methods for modifying collections.

• Methods for accessing elements by index.

• Support for deferred execution.

• Enumeration of key-value pairs.

What is the purpose of IList?

• To access elements by index.

• To represent a collection of key-value pairs.

• To allow iteration over a collection.

• To modify collections.