Oracle Java SE 21 Developer Professional: 1Z0-830

Coupon Verified on June 9th, 2026


Students : 5,876
Duration : 30 hours & 22 coding exercises
Avg Rating : 4.3
Original Price : $119.99
Discount Price : 100%OFF
Instructor / Provider : Andrii Piatakha, Udemy
Course Type : Self Paced Online Course. Lifetime Access
Coupon : Click on ENROLL NOW to apply discount code
Discount Price : 100%OFF       Rating : 4.7
Duration: : 8.5 hrs
Instructor / Provider :
Discount Price : 100%OFF       Rating : 4.3 (80 ratings)
Duration: : 60 hours
Instructor / Provider :

You’ll Learn How to:

  • Master Java Fundamentals: Handle primitives, wrapper classes, and perform type conversions seamlessly.
  • Evaluate Expressions: Understand and apply arithmetic and boolean expressions with proper precedence rules.
  • Text Manipulation: Work effectively with String, StringBuilder, and text blocks for advanced text handling.
  • Date-Time Operations: Utilize the Java Date-Time API to manage dates, times, periods, and time zones.
  • Control Flow Management: Create and manage constructs like if/else, switch, and loops.
  • Object-Oriented Programming (OOP): Implement encapsulation, inheritance, and advanced OOP principles.
Discount Price : $9.99       Rating : 4.1
Duration: : 5.5 hrs
Instructor / Provider :
  • Class and Record Creation: Design classes and records with fields, methods, and constructors.
  • Polymorphism in Practice: Apply polymorphism, method overriding, and use the instanceof operator with pattern matching.
  • Interfaces and Enums: Effectively use Java interfaces, functional methods, and enums.
  • Exception Handling: Manage exceptions using try/catch/finally, try-with-resources, and multi-catch blocks.
  • Array and Collection Operations: Create and manipulate arrays and Java Collections, including List, Set, Map, and Deque.
  • Stream API: Process data with Streams and lambdas for filtering, transforming, and sorting.
  • Advanced Stream Techniques: Perform operations like decomposition, reduction, and grouping with Streams.
  • Modular Java: Compile and create modular or non-modular JARs to understand Java modularity.
  • Concurrency Management: Handle concurrent code execution using threads, ExecutorService, and parallel streams.
  • Thread Safety: Develop thread-safe applications using locking mechanisms and concurrent APIs.
  • Java I/O: Read and write files, and perform object serialization/deserialization with the Java I/O API.
  • Localization: Implement localization with resource bundles and locale-specific parsing/formatting.
  • Advanced Features: Explore Java annotations, modular programming, and the Java Logging API.
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Deal Score+5
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If enrollment is done using a discount coupon, will a certificate be provided?

Yes. A certificate of completion is issued for Oracle Java SE 21 Developer Professional: 1Z0-830 after successful completion, as it is a paid Udemy course, regardless of whether enrollment was completed using a discount coupon.

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