Java Abstraction & Core Java APIs

What you'll learn

• Understand abstraction using abstract classes and interfaces
• Apply interfaces to achieve multiple inheritance concepts
• Handle errors using exception handling mechanisms
• Use try, catch, finally, throw, and throws effectively
• Work with Java Collections Framework
• Store and manage data using ArrayList, LinkedList, HashSet, and HashMap
• Iterate through collections using for-each and Iterator
• Build robust and scalable Java applications

This course includes:

• 3 Core Java Projects
• 12 Hours Live Classes
• Online / Onsite (Physical)
• Practice Code Files
• Real-World Data Handling Tasks
• Certificate of Completion

Course Content

Abstraction (Abstract Classes)

• What is Abstraction?
• Abstract Class and Abstract Methods
• When to Use Abstract Classes
• Implementing Abstract Classes
• Real-world Examples

Interfaces (Multiple Inheritance Concept)

• What is an Interface?
• Interface vs Abstract Class
• Implementing Interfaces
• Multiple Inheritance using Interfaces
• Default and Static Methods (Intro)

Exception Handling

• What are Exceptions?
• Types of Exceptions (Checked & Unchecked – Basic)
• try, catch, finally Blocks
• throw and throws Keywords
• Handling Runtime Errors
• Writing Safe Programs

Collections Framework

ArrayList

• Dynamic Arrays
• Adding, Removing, Accessing Elements
• When to Use ArrayList

LinkedList

• Difference between ArrayList and LinkedList
• Working with LinkedList
• Use Cases

HashSet

• Unique Elements Concept
• No Duplicate Values
• Basic Operations

HashMap

• Key-Value Pair Storage
• Adding and Accessing Data
• Iterating through Map

Iteration Techniques

• for-each Loop
• Iterator Interface
• Traversing Lists and Sets
• Iterating through HashMap

Practice Projects for Real-World Skills

• Shape System using Abstract Classes
• Payment System using Interfaces
• Student Record System using ArrayList
• Contact Manager using HashMap
• Exception Handling Demo Programs

Requirements

• Completion of Java Intermediate Modules 1 & 2
• Understanding of OOP concepts
• Laptop/PC with Java installed

Description

This module introduces abstraction and essential Java APIs used in real-world development. Students will learn how to design flexible systems using abstract classes and interfaces while also handling errors safely.

The module also covers the Java Collections Framework, enabling students to manage and manipulate data efficiently.

Why Choose This Course?

• Learn Core Java APIs
• Strong Foundation in Abstraction
• Real-World Data Handling Skills
• Hands-On Coding Practice
• Prepares for Advanced Java Development

Activities During Class

• Implementing abstract classes and interfaces
• Handling exceptions in programs
• Working with collections (lists, sets, maps)
• Iterating and managing data
• Building mini real-world applications

Who Is This Course For?

• Students who completed Java Intermediate Modules 1 & 2
• Learners advancing in Java programming
• Students preparing for real-world development

Course Highlights

• Core Java Mastery
• Data Structures Introduction
• Real-World Applications
• Interactive Sessions
• Certificate of Completion