CourseGenix

Java Fundamentals

5 Units21 Lessons

Unit 1

Basics

Introduction to Java Syntax and Hello World Program

Understanding Variables and Data Types in Java

Basic Operators in Java

Real-World Project: Building a Simple Calculator in Java

Input and Output Operations in Java

Unit 2

Control Structures and Loops

Real-World Project: Creating a Number Guessing Game with Loops

Implementing For and While Loops in Java

Using If-Else and Switch Statements in Java

Unit 3

Methods and Functions

Defining and Calling Methods in Java

Working with Parameters and Return Types in Java Methods

Method Overloading in Java

Real-World Project: Developing a String Utility Methods Library

Unit 4

Object-Oriented Programming

Creating Classes and Objects in Java

Inheritance and Polymorphism in Java

Encapsulation and Abstraction in Java

Using Interfaces and Abstract Classes in Java

Real-World Project: Designing a Basic Inventory Management System

Unit 5

Exception Handling and File I/O

Handling Exceptions with Try-Catch in Java

Creating and Using Custom Exceptions in Java

Reading and Writing Files in Java

Real-World Project: Building a Simple Text File Processor

Unit 1•Chapter 3

Basic Operators in Java

Summary

No summary available for this chapter.

Concept Check

0/10

What is the result of ~5 in Java?

6

-6

-6

-5

For int i=10, what is i after i += i++ * 2?

31

20

31

30

What is the output of System.out.println(5 / 2)?

3

2.5

2

2

Among *, +, =, which has highest precedence?

*

*

+

=

For boolean x=true, y=false, what is x ^ y?

false

true

null

true

What is the result of 5 + 3 * 2 in Java?

11

8

16

11 due to multiplication precedence

What does the bitwise AND operator & do with 12 & 5?

4 as binary intersection

7

17

4

What is the value of i after i = 10; j = ++i;?

12

11 after pre-increment

10

11

What is the outcome of true && false || true?

error

true from logical evaluation

false

true

What does the += operator do in x += y;?

x = y + x

x = x - y

x = x + y

Adds y to x and assigns

PreviousUnderstanding Variables and Data Types in Java

NextReal-World Project: Building a Simple Calculator in Java