- JAVA OVERVIEW
- History of Java
- Tools you will need for java
- Java Environment Setup
- Popular Java Editors
- Java Basic Syntax/First-Program
- Java Identifiers
- Java Modifiers
- Java Arrays
- Java Enums
- Java Keywords
- Comments in Java
- Java - Objects and Classes
- Objects in Java
- Classes in Java
- Constructors
- Creating an Object
- Accessing Instance Variables and Methods
- Source file declaration rules
- Java Package
- Simple Case Study
- Basic Data Types
- Primitive Data Types
- Reference Data Types
- Java Literals
- Variable Types
- Local variables
- Instance variables
- Class or static variables
- Java Access Modifiers
- What is OOPS
- Inheritance concept
- Encapsulation
- What is Polymorphism
- Method Overloading
- Method Overriding
- Abstraction in Java
- Abstract class
- Interface in Java
- Method overloading in Java:
- What is Annonymous object?
- Java 8
What is Java - Objects and Classes?
Java is an Object Oriented Language. As a language that has the Object Oriented feature Java supports the following fundamental concepts:
Polymorphism Inheritance
Encapsulation Abstraction
Classes Objects Instance Method
Message Parsing
In this chapter, we will look into the concepts Classes and Objects.
Object - Objects have states and behaviors. Example: A dog has states-color, name, breed as well as
behaviors -wagging, barking, eating. An object is an instance of a class.
Class - A class can be defined as a template/ blue print that describe the behaviors/states that object of its type support.