OCP Java SE 21 Developer Complete

All Users 16 Modules 63h 0m

OCP Java SE 21 Developer Complete

Course

This course prepares you for the Oracle Certified Professional Java SE 21 Developer exam (1Z0-829). Based on the OCP Oracle Certified Professional Java SE 21 Developer Study Guide by Scott Selikoff and Jeanne Boyarsky. Includes a dedicated module covering the differences introduced in Java 25 (1Z0-831).

AudienceAll Users
Number of Modules16
Course Duration63h 0m
Ready to test your knowledge?50 questions · 120 minutes · 68% passing score⚠️ You're not logged in — this attempt won't be saved to your profile or count toward XP.

Benefits to you

After completing this course, you should be able to:

  • Understand Java building blocks: primitives, operators, and program flow
  • Apply object-oriented principles: classes, interfaces, inheritance, and polymorphism
  • Work with generics, collections, and functional interfaces
  • Process data with lambdas, streams, and the Collections framework
  • Handle exceptions, I/O, and serialization
  • Write concurrent code using threads, executors, and virtual threads
  • Use the Java module system to package and deploy applications
  • Apply localization using locales and resource bundles
  • Build secure and well-structured applications following OCP best practices
  • Understand what changed from Java 21 to Java 25 for the 1Z0-831 exam