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  1. Programs
  3. Java SE 21 Developer Professional

Java SE 21 Developer Professional

Oracle

Certification

Become a contributor for free to openly demonstrate student outcomes, industry alignment & eligibility criteria.

The Java SE 21 Developer Professional 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.

Format

Online

Eligibility Calculator

Which aid programs apply to this program?

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Program Pathways

Credentials this program stacks toward

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Program Details

Detailed information about this program

Delivery: Proctored Online Format: Multiple Choice Duration: 120 Minutes Number of Questions: 50 Passing Score: 68% Things to do before your exam session Comprehensive instructions to prepare and take exams delivered by Oracle University 1. Your computer Ensure your computer meets minimum system requirements to take the exam. 2. Your Identification Government-issued identification is required to take the exam. 3. Testing Space Check-in time is 30 minutes before the exam time. After the exam Your exam results will be displayed on the screen at the close of your exam. You will be able to view your detailed score report in Oracle CertView .

Requirements

What you need to earn this credential

No requirements listed.

Financial Aid

Eligible funding programs

No funding information available.

Scholarships

No scholarships listed.

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Locations

Where this program is offered

No locations specified.

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Related Programs

Programs related to this one

No related programs.

Skills & Competencies

Skills developed through this program

  • Use primitives and wrapper classes
  • Evaluate arithmetic and boolean expressions, using the Math API and by applying precedence rules, type conversions, and casting
  • Manipulate text, including text blocks, using String and StringBuilder classes
  • Manipulate date, time, duration, period, instant and time-zone objects including daylight saving time using Date-Time API
  • Create program flow control constructs including if/else, switch statements and expressions, loops, and break and continue statements
  • Declare and instantiate Java objects including nested class objects, and explain the object life-cycle including creation, reassigning references, and garbage collection
Career Pathways

Occupations this program prepares you for

  • Software Developers15-1252.00
What You'll Learn

Key competencies developed through this program

Auto-populated·from NSX Competency Framework

Mastery: developing (Level 2)(based on Certification)

  • Multi-file features — design and implement end-to-end within an existing service.
  • Integration points (APIs, queues, databases) — work across confidently in a familiar stack.
  • Test strategy (unit, integration, end-to-end) — apply appropriately to assigned features.
  • Production incidents on owned components — investigate and resolve with reduced guidance.
  • Performance and scalability concerns in code — recognize and address in routine work.
  • Code reviews for peers — provide substantive feedback on a team's pull requests.
  • Estimates and breakdowns for medium tasks — produce reliably in sprint planning.
  • Refactoring of legacy code — execute safely in well-tested areas of the codebase.
  • Cloud services and platform tooling — use correctly in standard team workflows.
  • Junior developers on routine work — guide on patterns and conventions during onboarding.

Some details on this page are auto-populated from public workforce data sources: O*NET (opens in new tab), BLS (opens in new tab), College Scorecard (opens in new tab), DOL Training Provider Results (opens in new tab), NSX (opens in new tab). Provided in partnership with LER.me Career Intelligence.

Student Outcomes

Performance metrics for this program

Auto-populated·from Scorecard + DOL
Completion Rate
50%
Placement Rate
Not reported