Pass OCP Java 17 & 21 Exam | Lambdas, Streams, Concurrency, Modules, Records, Sealed Classes & 300+ Mock Questions
Sub Category
- IT Certifications
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Objectives
- Apply Java generics, collections, and the Stream API — including terminal and intermediate operations, collectors, flatMap, and parallel streams — at the depth
- Implement Java concurrency and multithreading — Executors, thread safety, synchronized blocks, locks, atomic variables, CompletableFuture, and concurrent collec
- Navigate the Java Platform Module System (JPMS) — module declarations, requires/exports/opens directives, unnamed modules, and the migration of classpath-based
- Work with modern Java language features — records, sealed classes, pattern matching for instanceof and switch, text blocks, and local variable type inference —
- Perform file I/O and database access using NIO.2 Path and Files API and JDBC — including connection management, PreparedStatement, transactions, and ResultSet h
- Evaluate personal exam readiness through four timed, full-length practice tests with per-topic diagnostic feedback that directs final preparation with precision
Pre Requisites
- Solid working experience with Java SE — you should be comfortable writing, compiling, and debugging Java applications independently at an intermediate to advanced level
- Strong grasp of Java OOP fundamentals — inheritance, polymorphism, interfaces, abstract classes, and exception handling — ideally validated by holding or studying for the OCA/1Z0-811
- Familiarity with Java functional programming basics — lambda expressions, functional interfaces, and at least introductory exposure to the Stream API
FAQ
- Q. How long do I have access to the course materials?
- A. You can view and review the lecture materials indefinitely, like an on-demand channel.
- Q. Can I take my courses with me wherever I go?
- A. Definitely! If you have an internet connection, courses on Udemy are available on any device at any time. If you don't have an internet connection, some instructors also let their students download course lectures. That's up to the instructor though, so make sure you get on their good side!
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