5. Objects
This chapter provides an introduction to the concept of objects in Object-Oriented Programming (OOP), explaining their characteristics, creation, and methods in Java. Key topics include the definition of an object, constructors for object initialization, the role of methods, the use of the 'this' keyword, and the lifecycle of objects including garbage collection. The chapter emphasizes the importance of objects in organizing code into modular and maintainable systems.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Objects are instances of classes that encapsulate data and methods.
- Constructors initialize objects upon creation, defining their initial state.
- Methods define the behavior of objects, allowing them to perform actions.
Key Concepts
- -- Object
- A self-contained unit consisting of data (attributes) and functions (methods) that operate on the data.
- -- Constructor
- A special method used to initialize objects when they are created.
- -- Method
- A function defined within a class that describes the behavior or actions of an object.
- -- Garbage Collection
- The automatic process by which the Java Virtual Machine reclaims memory from objects that are no longer in use.
- -- this Keyword
- A reference to the current object instance, used to differentiate instance variables from method parameters.
Additional Learning Materials
Supplementary resources to enhance your learning experience.