Introduction to Java

Introduction to Java

Duration: 3 Days

Description

This hands-on course introduces participants to the foundational concepts of Java programming, with a strong emphasis on object-oriented design and industry best practices. Learners explore core Java syntax, data structures, and flow control while building confidence through coding exercises, unit testing, and debugging techniques. The course culminates in practical work with inheritance, polymorphism, and modular software design using classes and interfaces. By the end, participants will have the foundation needed to write clean, well-structured Java programs.

Audience

This course is ideal for aspiring software developers, computer science students, and technical professionals who are new to Java and want a solid introduction to object-oriented programming. It’s also a strong fit for developers transitioning from procedural languages who want to build a firm foundation before moving on to frameworks and enterprise-level development.

Objectives

  • Understand and apply object-oriented programming principles such as encapsulation, inheritance, and polymorphism
  • Write and debug Java applications using classes, methods, and control structures
  • Store and manipulate data using arrays, strings, and variables
  • Design modular and maintainable code using Java’s class structure and package system
  • Implement unit tests using JUnit to verify code behavior and ensure reliability
  • Analyze and improve software cohesion, coupling, and class responsibilities
  • Apply Java naming conventions and utilize access modifiers appropriately

Prerequisites

Participants should have basic computer literacy and a general understanding of programming concepts such as variables, loops, and conditionals. No prior experience with Java or object-oriented programming is required. Familiarity with any programming or scripting language (such as Python, JavaScript, or C) is helpful but not mandatory.

Course Outline

Module 1: Introduction to Object-Oriented Programming

  • Object-Oriented Programming Overview
  • Classes and Objects
  • Inheritance
  • Overloading and Overriding
  • Interfaces and Abstract Classes
  • Encapsulation and Polymorphism

Module 2: Java Fundamentals

  • Java Environment
  • Writing Java Code
  • Storing Data
  • Methods and Operators
  • Strings and Arrays

Module 3: Flow Control

  • Variable Scope
  • Conditional Statements
  • Enums
  • Looping Constructs

Module 4: JUnit

  • Unit Testing Overview
  • Testing with JUnit

Module 5: Object-Oriented Software

  • Classes and Objects
  • Data Encapsulation
  • Classes and Responsibilities
  • Cohesion and Coupling
  • Debugging

Module 6: More About Classes and Objects

  • Overloading
  • Constructors
  • Naming Conventions and JavaBeans
  • Packages and Imports
  • static Members

Module 7: Inheritance and Polymorphism

  • Extending Classes
  • Constructors and Typing
  • Overring
  • Polymorphism
  • Visibility – protected