Introduction to Core Java 21 Programming Developers Workshop

The Core Java Programming Developer’s Workshop is a five-day, hands-on training program designed for experienced developers transitioning to Java from other programming languages. This lab-intensive course focuses on building practical, job-ready skills for developing efficient, maintainable, and scalable Java applications. Participants learn to design robust object-oriented systems, manage complexity, debug real-world issues, and apply modern Java features introduced up through Java 21. Emphasis is placed on adapting existing programming knowledge to Java’s object model, tooling, and ecosystem, preparing learners to confidently contribute to enterprise and full-stack Java projects across Java versions 8, 11, 17, and 21.

• Understand the Java platform, JVM responsibilities, and Java program lifecycle
• Write clean, maintainable Java classes using object-oriented design principles
• Apply core OOP concepts including encapsulation, inheritance, polymorphism, and abstraction
• Use modern Java language features such as records, sealed classes, switch expressions, text blocks, and pattern matching
• Implement exception handling strategies for robust and reliable applications
• Work with Java packages, visibility rules, and the Java Module System (Project Jigsaw)
• Use collections, generics, lambda expressions, streams, and collectors for data processing
• Design reusable and extensible code using interfaces and abstract classes
• Build, structure, and manage Java projects using standard build processes and dependency management
• Utilize IntelliJ IDE and Java tooling to improve productivity and debugging efficiency
• Access and manipulate data using JDBC and database integration techniques
• Apply Java 21 features such as pattern matching in switch statements and record patterns to reduce boilerplate code

• Experienced software developers with a background in another programming language (e.g., C#, C++, Python)
• Developers new to Java who want a structured, hands-on transition
• Technical professionals working on or preparing for Java or full-stack projects
• Teams modernizing or standardizing on Java for enterprise application development
• Developers seeking practical, production-oriented Java skills

• Prior hands-on programming experience in an object-oriented language (e.g., C#, C++)
• Familiarity with basic programming constructs such as variables, loops, conditionals, and functions
• Ability to use command-line tools, navigate file systems, and set up development environments
• Current or prior experience in a technical or development-focused role