Constructors In Java – Three Different Types Of Constructors
What Is Constructors In Java The Constructors In Java is a special method that is used to initialize or set up new objects. When a class object is created, the …
Java Tutorial
Java is the language that teaches object-oriented programming better than any other, strict typing, explicit class structures, mature ecosystem. It’s the backbone of enterprise software, Android apps, and countless BSIT capstones built with NetBeans or IntelliJ. This hub collects free Java tutorials from “hello world” through Swing GUIs, JavaFX, JDBC database integration, and Spring Boot REST APIs.
What you’ll learn in the Java tutorial series
Core syntax: variables, primitives, operators, control flow
Object-Oriented Programming: classes, objects, inheritance, polymorphism, encapsulation, abstraction
Collections framework: ArrayList, HashMap, HashSet, LinkedList, iterators
Exception handling: try/catch/finally, checked vs unchecked, custom exceptions
File I/O: reading/writing files, streams, NIO
JDBC: connecting to MySQL or SQL Server, prepared statements, transactions
GUI development: Swing (NetBeans), JavaFX (modern UI)
Modern Java: lambda expressions, streams, var, records, switch expressions
Spring Boot intro: REST APIs, dependency injection, JPA
Why Java for BSIT capstones
Java is preferred by BSIT/BSCS panels that emphasize OOP discipline: Java’s strict structure forces students to think about classes, inheritance, and encapsulation before writing code. It’s the dominant language for Android development (via NetBeans + Android Studio), enterprise systems (Spring Boot), and many desktop capstones (Swing + JDBC + MySQL). Performance is excellent, deployment is well-documented.
Recommended Java development setup
JDK 21 LTS (current stable Long-Term Support release)
NetBeans (most common for Philippine BSIT capstones) or IntelliJ IDEA Community (free, more modern)
Maven or Gradle for build tooling and dependency management
MySQL Connector/J for JDBC database connections
Git for version control (and GitHub for backup + showcasing)
JUnit for unit testing
Related Java resources
Java Projects, downloadable Java capstones
MySQL Projects, JDBC + MySQL integration
Android Projects, mobile capstones using Java
UML Diagrams, for OOP capstone documentation
Database Design, for ER diagrams in your Chapter 3
Scroll down to browse the full Java tutorial catalog ↓
Classes and Object in Java – Difference, Method, and Instance
What is Class and Object in Java? In Java, everything is linked to classes and objects, as well as their attributes and methods. In real life, a car is an …
Java Basic Syntax – Identifiers, Modifiers, Variables, Arrays, Enums
This Basic Java Syntax serves as a fundamental learning guide for you to master Java and become a good Java developer in the future. What is Basic Syntax In Java? …
Getting Started In Java Environment Setup
Java Environment Setup is the most important thing to do to start learning Java. Here are the things you need to do to properly set up the Java environment on …
Introduction To Java – How To Start Programming With Java?
Introduction to Java programming History About Java The History Of Java is really interesting. ➡ It is a programming language made in 1991. ➡ James Gosling, Mike Sheridan, and Patrick …
Best Java Basic Tutorial For Beginners – Generation and Questions
In this Java Basic Tutorial For Beginners, we will talk about everything you need to know about the Java programming language, from zero to hero. Java is used to create …
Bubble Sort in Java With Example Code
What is Bubble Sort in Java? The Java Program to Bubble Sort is a basic sorting algorithm that compares neighboring array elements and swaps them if the rightmost element is …
Quicksort in Java With Example Code
What is Quicksort in Java? The Quick Sort in Java is a sorting algorithm that belongs to the divide-and-conquer group. It sorts in place (no need for extra data structures) …
Selection Sort in Java With Example Code
What is Selection Sort in Java? The Selection Sort In Java Program algorithm selects the smallest element in the array and swaps it with the array’s first element. The array’s …
Insertion Sort in Java With Example Code
What is Insertion Sort in Java? The Insertion Sort In Java Program is a simple sorting method that provides for efficient, one-at-a-time sorting of an array. By in-place sorting, we …
Addition Of Two Numbers In Java With Program Examples
In this article, we will learn about Addition Of Two Numbers In Java. This article also has the best program examples for finding the sum or addition of two numbers …
Java Class: The Ultimate Guide For Beginners
Good day, ITSOURCECODERS! In this tutorial, I will show you a complete guide for beginners on JAVA classes, including the given source code and expected output. So let’s get started! …
Frequently Asked Questions
Is Java still worth learning in 2026?
Yes — Java is still in the top 3 most-used programming languages globally and dominates enterprise software, Android development, and large-scale backend systems. For BSIT/BSCS capstones, Java with NetBeans or IntelliJ remains a top choice for OOP-focused panels. Modern Java (versions 17+) has lambdas, streams, records, and pattern matching — comparable to newer languages in expressiveness.
Which Java version should I use?
Use a Long-Term Support (LTS) release: JDK 21 (current LTS, recommended) or JDK 17 (still widely supported). Avoid old Java 8 unless required by legacy code — it lacks modern features. Get the JDK from OpenJDK (free, e.g., from Eclipse Temurin) — don't pay for Oracle JDK; the open-source builds are identical.
NetBeans, IntelliJ, or Eclipse — which IDE?
NetBeans — most common for Philippine BSIT capstones; great drag-and-drop Swing GUI builder, easy database wizards. IntelliJ IDEA Community Edition — free, more modern, better refactoring tools; industry standard for Java in 2026. Eclipse — older, still used in enterprise, less polished. For new capstones, IntelliJ Community is the best free choice. For panels that prefer the drag-and-drop GUI builder, stick with NetBeans.
How do I connect Java to a database?
Use JDBC (Java Database Connectivity). Steps: (1) Add the database driver JAR to your project (e.g., MySQL Connector/J for MySQL). (2) Open a
Connection with DriverManager.getConnection(url, user, pass). (3) Use PreparedStatement (NOT Statement) for queries — prevents SQL injection. (4) Process results with ResultSet. (5) Close resources in a finally block or use try-with-resources for automatic cleanup.What's the difference between Java SE, Java EE, and Spring Boot?
Java SE (Standard Edition) — the core language and standard library. This is what you learn first; sufficient for desktop apps and JDBC database apps. Java EE / Jakarta EE — enterprise specifications (Servlets, JPA, EJB) — older approach to web apps. Spring Boot — modern Java web framework that replaces Java EE for most use cases; simpler, faster, larger community. For 2026 capstones doing web work, use Spring Boot.
What can I build with Java for my capstone?
Common Philippine BSIT capstone domains using Java: Desktop CRUD apps (Swing/JavaFX + JDBC + MySQL) — Library, Hospital, School systems. Android mobile apps — booking, attendance, study aids. Spring Boot REST APIs — back-ends for React/Vue front-ends. Enterprise systems — Inventory, Payroll, ERP-style. Browse our Java Projects hub for downloadable examples.