OOP Concepts in Java_Revision

A class is a collection of data without methods.

A class is a blueprint for creating objects that defines properties and methods.

A class is a function that executes code.

A class is a type of variable in programming.

A table

A chair

A car

A computer

The purpose of a constructor in a class is to initialize objects.

To create static variables in a class.

To delete objects from memory.

To define methods in a class.

Use the copy constructor method.

Implement the Cloneable interface and use the clone() method.

Call the Object.copy() method.

Serialize the object to a file.

replicate function

copy constructor

duplicate method

clone or copy method

Single inheritance is when a class inherits from one and only one parent class.

Single inheritance allows multiple parent classes.

Single inheritance is when a class inherits from no parent class.

Single inheritance is a feature of functional programming only.

Single inheritance from one parent class

Inheritance that allows classes to share methods only

Multiple inheritance is when a class can inherit from multiple parent classes.

A method of combining multiple classes into one

implements

inherits

subclass

extends

An interface is a collection of objects that can be instantiated.

An interface is a class that can contain method implementations.

An interface in Java is a reference type that defines a contract for classes to implement.

An interface is a type of variable that holds data.

Use the 'inherits' keyword to implement an interface.

Define interface methods without implementing them.

Use the 'extends' keyword in the class declaration.

Use the 'implements' keyword in the class declaration and define all interface methods.