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Java Fundamentals
7 Units
35 Lessons
Unit 1
Basics
Introduction to Java and Its History
Setting Up Your Java Development Environment
Understanding Java Comments and Code Structure
Real-World Project: Creating a Simple Greeting Application
Basic Java Syntax and Hello World Program
Unit 2
Variables and Data Types
Exploring Primitive Data Types
Working with Reference Data Types and Strings
Type Casting and Conversion Techniques
Declaring and Initializing Variables in Java
Real-World Project: Building a Basic Calculator Tool
Unit 3
Control Flow
Conditional Statements with If-Else
For and While Loops for Repetition
Nested Loops and Conditional Combinations
Switch Statements for Multiple Choices
Real-World Project: Developing a Number Guessing Game
Unit 4
Methods
Defining and Calling Methods
Passing Parameters and Arguments
Return Types and Method Overloading
Scope and Lifetime of Variables in Methods
Real-World Project: Implementing a Utility Method Library
Unit 5
Classes and Objects
Creating and Using Classes
Understanding Objects and Instantiation
Constructors and Their Role
Real-World Project: Designing a Basic Inventory Management System
Access Modifiers for Class Members
Unit 6
Inheritance and Polymorphism
Real-World Project: Building a Shape Hierarchy Application
Understanding Polymorphism and Dynamic Binding
Abstract Classes and Interfaces
Overriding Methods and Super Keyword
Implementing Inheritance in Java
Unit 7
Exception Handling
Creating Custom Exception Classes
Real-World Project: Error-Handling in a File Reader Application
Basics of Exceptions and Error Types
Using Try-Catch and Finally Blocks
Throwing and Propagating Exceptions
Unit 5
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Chapter 2
Understanding Objects and Instantiation
Summary
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What distinguishes instance variables in a Java class?
They are static and class-level.
They cannot be accessed directly.
They are shared across all objects.
They belong to objects created from the class.
How does object instantiation relate to classes in Java?
It creates an instance based on the class blueprint.
It defines a new class structure.
It executes the main method only.
It compiles the Java code.
Why should a Java class represent a single entity?
To enforce language rules strictly.
To reduce the number of variables.
To speed up program execution.
To avoid messy code and maintain organization.
In Java, what is an object in relation to a class?
A method within the class.
The class definition itself.
A static variable declaration.
An instance of the class blueprint.
What role do classes play in object-oriented programming like Java?
They serve as blueprints for objects.
They handle user input directly.
They replace the need for methods.
They are only used in main programs.
5 questions remaining
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Creating and Using Classes
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Constructors and Their Role