Free Java - 1Z0829 Certification Preparation Set

The 1z0-829 certification, also known as the Java SE 17 Developer Certification, is designed to validate the knowledge and skills of Java developers who are proficient in developing applications using the Java 17 programming language.
The certification covers various topics related to Java 17, including:

• Language enhancements
• New APIs
• Modular programming
• Concurrency
• Security
• Performance optimization

It also focuses on the latest features and improvements introduced in Java 17, such as:

• Pattern matching
• Sealed classes
• Records
• New APIs like foreign function and interoperation API
• Enhanced garbage collection

By obtaining this certification, candidates can demonstrate their expertise in Java 17 and their ability to develop robust and efficient applications using the latest features and best practices. It is particularly valuable for developers who want to stay up to date with the latest Java advancements and enhance their career prospects in the software development industry.
To prepare for the 1z0-829 certification exam, candidates are recommended to have experience in Java programming and knowledge of earlier versions of the Java programming language. They can also benefit from studying the official study guide provided by Oracle, which covers the exam objectives in detail and includes practice questions to assess their understanding of the topics.
Overall, the 1z0-829 Java 17 certification is a valuable credential for Java developers looking to validate their skills and knowledge in the latest version of the Java programming language, allowing them to stand out in the job market and showcase their expertise in Java application development.


Exam topics - 1Z0-829

Handling date, time, text, numeric and boolean values

Use primitives and wrapper classes including Math API, parentheses, type promotion, and casting to evaluate arithmetic and boolean expressions
Manipulate text, including text blocks, using String and StringBuilder classes
Manipulate date, time, duration, period, instant and time-zone objects using Date-Time API

Controlling Program Flow

Create program flow control constructs including if/else, switch statements and expressions, loops, and break and continue statements

Utilizing Java Object-Oriented Approach

Declare and instantiate Java objects including nested class objects, and explain the object life-cycle including creation, reassigning references, and garbage collection
Create classes and records, and define and use instance and static fields and methods, constructors, and instance and static initializers
Implement overloading, including var-arg methods
Understand variable scopes, use local variable type inference, apply encapsulation, and make objects immutable
Implement inheritance, including abstract and sealed classes. Override methods, including that of Object class. Implement polymorphism and differentiate object type versus reference type. Perform type casting, identify object types using instanceof operator and pattern matching
Create and use interfaces, identify functional interfaces, and utilize private, static, and default interface methods
Create and use enumerations with fields, methods and constructors

Handling Exceptions

Handle exceptions using try/catch/finally, try-with-resources, and multi-catch blocks, including custom exceptions

Working with Arrays and Collections

Create Java arrays, List, Set, Map, and Deque collections, and add, remove, update, retrieve and sort their elements

Working with Streams and Lambda expressions

Use Java object and primitive Streams, including lambda expressions implementing functional interfaces, to supply, filter, map, consume, and sort data
Perform decomposition, concatenation and reduction, and grouping and partitioning on sequential and parallel streams

Packaging and deploying Java code and use the Java Platform Module System

Define modules and their dependencies, expose module content including for reflection. Define services, producers, and consumers
Compile Java code, produce modular and non-modular jars, runtime images, and implement migration using unnamed and automatic modules

Managing concurrent code execution

Create worker threads using Runnable and Callable, manage the thread lifecycle, including automations provided by different Executor services and concurrent API
Develop thread-safe code, using different locking mechanisms and concurrent API
Process Java collections concurrently including the use of parallel streams

Using Java I/O API

Read and write console and file data using I/O Streams
Serialize and de-serialize Java objects
Create, traverse, read, and write Path objects and their properties using java.nio.file API

Accessing databases using JDBC

Create connections, create and execute basic, prepared and callable statements, process query results and control transactions using JDBC API

Implementing Localization

Implement localization using locales, resource bundles, parse and format messages, dates, times, and numbers including currency and percentage values