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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 4
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Chapter 2
Passing Parameters and Arguments
Summary
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What occurs if you pass a primitive type to a method in Java?
Reference to the original passed.
A copy of the value is passed.
The original variable changes.
Method modifies the caller directly.
How does Java handle multiple parameters in method overloading?
By return type exclusively.
Based on parameter types and order.
Only by number of parameters.
Randomly selects a method.
Can a method parameter be reassigned within the method?
Depends on the data type used.
Yes, but changes are local only.
Yes, affects the original variable.
No, parameters are immutable.
What is the risk of using default values for parameters?
Java doesn't support default values natively.
Reduces code duplication effectively.
Causes runtime errors frequently.
Improves method flexibility always.
In what scope are method parameters accessible?
Throughout the entire class.
Persistent after method execution.
Only within the method body.
Globally across all methods.
5 questions remaining
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Defining and Calling Methods
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Return Types and Method Overloading