Java Tutorials
Classes and Objects in Java
Table of Contents
- Introduction
- What is Class in Java?
- Things to Know About Java Classes
- Components of Classes in Java
- Classes in Java: Video
- What is an Object in Java?
- Components of Objects of Java
- Types of Objects in Java
- How to Create a Class in Java?
- How to Create Objects in Java?
- Objects in JAVA: Video
- How Many Ways To Create Objects in Java?
- How to Create Multiple Objects in Java?
- List of Objects in Java
- Difference Between Classes vs Objects in Java
Classes in Java: Video
Objects in JAVA: Video
FAQs About Classes and Objects in Java
A class is a blueprint that defines the structure and behavior of objects, while an object is an instance of that class created at runtime.
Yes, you can create multiple objects of the same class in Java. Each object is independent and has its own set of data and can perform actions defined in the class.
A constructor in Java is a special method that is called when an object is created using the new keyword. It initializes the object and sets its initial state.
Yes, a class can have multiple constructors in Java. This is known as constructor overloading, where you define multiple constructors with different parameter lists.
If you don't define any constructor in a class, Java provides a default constructor with no parameters. It initializes data members with default values.
To access data members and methods of an object, use the dot notation (objectName.dataMember or objectName.methodName()).
Yes, objects of one class can interact with objects of another class by invoking methods or accessing data members if they are accessible (e.g., public or protected).
This keyword in Java refers to the current object instance within a class. It is used to differentiate between class data members and method parameters with the same name.
