Oracle Certified Professional: Java SE 21 Developer

Issued by Oracle

Awarded to

mohamed amine lechhab

Issued on

17 June 2026

Valid until

December 31, 9999

Skills

The Java SE 21 Developer exam is designed for Java developers to validate their skills and expertise in Java Standard Edition (SE) 21. This certification demonstrates a developer's proficiency in Java programming and is recognized by employers as a mark of excellence and technical capability. Candidates are expected to exhibit a thorough and broad knowledge of the Java programming language, coding practices, and utilization of modern features incorporated into Java SE 21.

Use Java concepts such as Object-Oriented programming

Controlling Program Flow

Handling Exceptions

Working with Arrays and Collections

Working with Streams and Lambda expressions

Packaging and Deploying Java Code

Managing Concurrent Code Execution

Using Java I/O API

Implementing Localization