Java 11 certification [ java 11 certification study guide | java certification exam]

Java 11 certification study guide

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java 11 certification

Why should I get java certified ?

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Java certification exam

If you want to be professional java developer, you have to take two exam

Java SE 11 Programmer I (Oracle Certified Associate (OCA))
Java SE 11 Programmer II (Oracle Certified Professional (OCP))

taking only "Java SE 11 Programmer I" is only half of the journey, candidates has to complete the java certification journey by passing the Programmer II exam and gaining the full skill set of a professional java developer.

Being professional java developer you can gain advantage in your jobs like promotions, credibility etc.

Java SE 11 Programmer I | 1Z0-815 Exam Details

Programmer I Exam Details

Exam Title:	Java SE 11 Programmer I
Exam Number:	1Z0-815
Exam Price:	₹10,475.00 More on exam pricing
Format:	Multiple Choice
Duration:	180 Minutes
Number of Questions:	80
Passing Score:	63 %
Validated Against:	This exam has been validated against Java 11.

Java 11 certification course for Java SE 11 Programmer I

Understanding Java Technology and environment

Describe Java Technology and the Java development
Identify key features of the Java language

Creating a Simple Java Program

Create an executable Java program with a main class
Compile and run a Java program from the command line
Create and import packages

Working With Java Primitive Data Types and String APIs

Declare and initialize variables (including casting and promoting primitive data types)
Identify the scope of variables
Use local variable type inference
Create and manipulate Strings
Manipulate data using the StringBuilder class and its methods

Using Operators and Decision Constructs

Use Java operators including the use of parentheses to override operator precedence
Use Java control statements including if, if/else, switch
Create and use do/while, while, for and for each loops, including nested loops, use break and continue statements

Working with Java Arrays

Declare, instantiate, initialize and use a one-dimensional array
Declare, instantiate, initialize and use a two-dimensional array

Describing and Using Objects and Classes

Declare and instantiate Java objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
Define the structure of a Java class
Read or write to object fields

Creating and Using Methods

Create methods and constructors with arguments and return values
Create and invoke overloaded methods
Apply the static keyword to methods and fields

Applying Encapsulation

Apply access modifiers
Apply encapsulation principles to a class

Reusing Implementations Through Inheritance

Create and use subclasses and superclasses
Create and extend abstract classes
Enable polymorphism by overriding methods
Utilize polymorphism to cast and call methods, differentiating object type versus reference type
Distinguish overloading, overriding, and hiding

Programming Abstractly Through Interfaces

Create and implement interfaces
Distinguish class inheritance from interface inheritance including abstract classes
Declare and use List and ArrayList instances
Understanding Lambda Expressions

Handling Exceptions

Describe the advantages of Exception handling and differentiate among checked, unchecked exceptions, and Errors
Create try-catch blocks and determine how exceptions alter program flow
Create and invoke a method that throws an exception

Understanding Modules

Describe the Modular JDK
Declare modules and enable access between modules
Describe how a modular project is compiled and run

Java SE 11 Programmer II | 1Z0-816 Exam Details

Programmer II Exam Details

Exam Title:	Java SE 11 Programmer II
Exam Number:	1Z0-816
Exam Price:	₹10,475.00 More on exam pricing
Format:	Multiple Choice
Duration:	180 Minutes
Number of Questions:	80
Passing Score:	63 %
Validated Against:	This exam has been validated against Java 11.

Java 11 certification course for Java SE 11 Programmer II

Java Fundamentals

Create and use final classes
Create and use inner, nested and anonymous classes
Create and use enumerations

Java Interfaces

Create and use interfaces with default methods
Create and use interfaces with private methods

Exception Handling and Assertions

Use try-with-resources construct
Create and use custom exception classes
Test invariants by using assertions

Generics and Collections

Use wrapper classes, auto-boxing and auto-unboxing
Create and use generic classes, methods with diamond notation and wildcards
Describe Collections Framework and use key collection interfaces
Use Comparator and Comparable interfaces
Create and use convenience methods for collections

Functional Interface and Lambda Expressions

Define and write functional interfaces
Create and use lambda expressions including statement lambdas, local-variable for lambda parameters

Built-in Functional Interfaces

Use interfaces from java.util.function package
Use core functional interfaces including Predicate, Consumer, Function and Supplier
Use primitive and binary variations of base interfaces of java.util.function package

Java Stream API

Describe the Stream interface and pipelines
Use lambda expressions and method references

Lambda Operations on Streams

Extract stream data using map, peek and flatMap methods
Search stream data using search findFirst, findAny, anyMatch, allMatch and noneMatch methods
Use Optional class
Perform calculations using count, max, min, average and sum stream operations
Sort a collection using lambda expressions
Use Collectors with streams, including the groupingBy and partitioningBy operation

Parallel Streams

Develop the code that uses parallel streams
Implement decomposition and reduction with streams

Migration to a Modular Application

Migrate the application developed using a Java version prior to SE 9 to SE 11 including top-down and bottom-up migration, splitting a Java SE 8 application into modules for migration
Use jdeps to determine dependencies and identify ways to address the cyclic dependencies

Services in a Modular Application

Describe the components of Services including directives
Design a service type, load services using ServiceLoader, check for dependencies of the services including consumer and provider modules

Concurrency

Create worker threads using Runnable, Callable and use an ExecutorService to concurrently execute tasks
Use java.util.concurrent collections and classes including CyclicBarrier and CopyOnWriteArrayList
Write thread-safe code
Identify threading problems such as deadlocks and livelocks

I/O (Fundamentals and NIO2)

Read data from and write console and file data using I/O Streams
Use I/O Streams to read and write files
Read and write objects by using serialization
Use Path interface to operate on file and directory paths
Use Files class to check, delete, copy or move a file or directory
Use Stream API with Files

Secure Coding in Java SE Application

Prevent Denial of Service in Java applications
Secure confidential information in Java application
Implement Data integrity guidelines- injections and inclusion and input validation
Prevent external attack of the code by limiting Accessibility and Extensibility, properly handling input validation, and mutability
Secure constructing sensitive objects
Secure Serialization and Deserialization

Database Applications with JDBC

Connect to databases using JDBC URLs and DriverManager
Use PreparedStatement to perform CRUD operations
Use PreparedStatement and CallableStatement APIs to perform database operations

Annotations

Describe the purpose of annotations and typical usage patterns
Apply annotations to classes and methods
Describe commonly used annotations in the JDK
Declare custom annotations

Localization

Use Locale class
Use resource bundles
Format messages, dates, and numbers with Java

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Sunday, November 24, 2019