OCP Java 17, 11, 8 Certification Exam Prep 1Z0-819 & 1Z0-829

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#JavaPouplarity

Java is one of the most popular programming languages in use today and is commonly used for building enterprise-level applications, as well as for developing Android apps. It is known for its simplicity, readability, and robustness, and is widely used in a variety of industries including finance, retail, and healthcare.

#JavaMarket

There is typically a strong demand for Java developers in the job market. According to data from the Bureau of Labor Statistics (BLS), employment in computer and information technology occupations, including Java developers, is projected to grow 11% from 2019 to 2029, much faster than the average for all occupations.

Some of the industries that commonly hire Java developers include Financial Services, Retail, Healthcare, Government, and Telecommunications.

Overall, the demand for Java developers is expected to remain strong as businesses and organizations continue to adopt and integrate new technologies. In addition, the increasing use of mobile devices and the growth of the internet of things (IoT) is likely to create additional job opportunities for Java developers.

#JavaCertification

Obtaining a certification can be a valuable investment in one's career and can help individuals achieve their professional goals. Some of the potential benefits of passing a certification include:

1. Improved job prospects: Certification can demonstrate to potential employers that an individual has a certain level of knowledge and expertise in a particular field or area of study. This can make them more competitive in the job market and may increase their chances of being hired or promoted.

2. Increased credibility: Certification can establish an individual as an expert in their field, and can enhance their credibility with clients, colleagues, and other stakeholders.

3. Improved job performance: Certification programs often involve rigorous training and testing, which can help individuals develop new skills and knowledge that can improve their job performance.

4. Increased earning potential: Certification can sometimes lead to higher salaries and other financial benefits, as employers may be willing to pay a premium for individuals who have demonstrated their expertise through certification.

5. Career advancement: Certification can provide individuals with the opportunity to advance their careers by demonstrating their commitment to professional development and continuous learning.

#JustDoIt

STEP IN and just do these practice tests to reach your FULL capabilities !!

#Syllabus

Discover practice tests on Java from Java 8 to Java 17 covering:

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 the 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 using the Java Platform Module System

• Define modules and their dependencies, and 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 automation 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