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 5•Chapter 1

Handling Exceptions with Try-Catch in Java

Summary

Summarize in 250 words or less. Exclude sponsors and unrelated topics. Do not introduce the summary.

Concept Check

0/10

What happens if an exception is not caught in any catch block?

It is thrown to the calling method

It is thrown to the calling method

It is handled by the finally block

The program terminates immediately

Can you have a try block without a catch block in Java?

Only in methods that throw exceptions

Yes, if there's a finally block

Yes, if there's a finally block

No, try must have catch

What is the order of execution for try, catch, and finally blocks if an exception occurs?

Try executes, catch handles, finally executes

Try, catch, finally

Try, finally only

Catch, try, finally

In nested try-catch blocks, where is an exception handled first?

In the innermost try-catch block

In the innermost try-catch block

In the outermost try-catch block

It depends on the exception type

What type of exceptions can be caught by a catch block for Exception class?

Both checked and unchecked exceptions

Both checked and unchecked exceptions

Only checked exceptions

Only unchecked exceptions

What occurs if an exception is thrown in a try block without a catch?

Exception propagates to caller method.

Finally block is skipped.

Program continues normally.

Exception is automatically handled.

In nested try-catch, where is an exception first handled?

No handling occurs.

Finally block of inner try.

Outermost catch block.

Innermost catch block matching it.

What is the purpose of the finally block in try-catch?

Executes regardless of exceptions.

Handles specific exceptions.

Replaces the catch block.

Only runs if no exception.

Can you catch multiple exceptions in one catch block in Java?

No, separate blocks needed.

Only for checked exceptions.

It causes compilation error.

Yes, using multi-catch syntax.

What happens when you rethrow an exception in catch block?

Exception propagates further up.

It is completely handled.

Program terminates there.

Finally block prevents it.

NextCreating and Using Custom Exceptions in Java