Exam Code: 1Z0-855
Exam Name: Java Standard Edition 6 Developer Certified Master Downloadable Project (Step 1 of 2)
Certification Provider: Oracle
Corresponding Certification: Java Technology

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Updated: Jul 30, 2026

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Oracle 1Z0-855 Exam Overview:

Certification Vendor:	Oracle
Exam Name:	Java Standard Edition 6 Developer Certified Master Downloadable Project (Step 1 of 2)
Exam Number:	1Z0-855
Exam Duration:	Unlimited / Self-paced
Passing Score:	Project evaluation: 70% minimum
Exam Format:	Programming Assignment, Design & Implementation, Code Submission
Certificate Validity Period:	No expiration
Real Exam Qty:	0 (Practical Assignment)
Available Languages:	English
Related Certifications:	Oracle Certified Master, Java SE 6 Developer (requires 1Z0-856)
Exam Price:	USD 245
Recommended Training:	Java SE 6 Programming Object-Oriented Analysis and Design Using UML
Exam Registration:	Oracle University Registration Pearson VUE
Exam Way:	Self-paced downloadable project; complete locally, submit source code and documentation via Oracle portal
Pre Condition:	Must hold Oracle Certified Professional, Java SE 5/SE 6/SE 7/SE 8 Developer certification (1Z0-851, 1Z0-852, 1Z0-804, 1Z0-809) or equivalent legacy Sun certification
Official Syllabus URL:	https://education.oracle.com/oracle-certified-master-java-se-6-developer/trackp_158

Oracle 1Z0-855 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: User Interface & Functionality	20%	- Application Usability - Event Handling Mechanisms - Swing GUI Components
Topic 2: Java SE 6 Core Implementation	40%	- Data Structures & Collections - Networking & Socket Programming - Concurrency & Thread Control - Input/Output & File Handling
Topic 3: Application Design & Architecture	30%	- Class Structure & Modularity - Design Pattern Usage - Object-Oriented Analysis & Design
Topic 4: Documentation & Quality	10%	- Javadoc & Technical Comments - Code Readability & Standards - Error Handling & Exception Management

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