Java 8 certification upgrade | Java 6 certification upgrade | Java 7 certification upgrade

Java 8 certification upgrade from java 6 , 7

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Java 8 certification upgrade from java 6,7

Already an OCP or SCJP for Java SE 6 or prior and looking to upgrade to java 8 ?

To Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions) | 1Z0-813 Please look below details

This exam retires on 29, Feb 2020.

Exam Details

Exam Title:	Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions)
Exam Number:	1Z0-813
Exam Price / certification cost:	₹10,475.00
Duration:	130 minutes
Number of Questions:	60
Passing Score:	63%

## Exam Topic

Language Enhancements

• Develop code that uses String objects in the switch statement, binary literals, and numeric literals, including underscores in literals
• Develop code that uses try-with-resources statements, including using classes that implement the AutoCloseable interface
• Develop code that handles multiple Exception types in a single catch block
• Use static and default methods of an interface including inheritance rules for a default method

Concurrency

• Use classes from the java.util.concurrent package including CyclicBarrier and CopyOnWriteArrayList with a focus on the advantages over and differences from the traditional java.util collections 
• Use Lock, ReadWriteLock, and ReentrantLock classes in the java.util.concurrent.locks and java.util.concurrent.atomic packages to support lock-free thread-safe programming on single variables
• Use Executor, ExecutorService, Executors, Callable, and Future to execute tasks using thread pools
• Use the parallel Fork/Join Framework

Localization

• Describe the advantages of localizing an application and developing code that defines, reads, and sets the locale with a Locale object
• Build a resource bundle for a locale and call a resource bundle from an application
• Create and manage date- and time-based events by using LocalDate, LocalTime, LocalDateTime, Instant, Period, and Duration, including a combination of date and time in a single object
• Format dates, numbers, and currency values for localization with the NumberFormat and DateFormat classes, including number and date format patterns
• Work with dates and times across time zones and manage changes resulting from daylight savings

Java File I/O (NIO.2)

• Operate on file and directory paths by using the Paths class
• Check, delete, copy, or move a file or directory by using the Files class 
• Recursively access a directory tree by using the DirectoryStream and FileVisitor interfaces
• Find a file by using the PathMatcher interface, and use Java SE 8 I/O improvements, including Files.find(), Files.walk(), and lines() methods
• Observe the changes in a directory by using the WatchService interface

Lambda

• Define and write functional interfaces and describe the interfaces of the java.util.function package
• Describe a lambda expression; refactor the code that uses an anonymous inner class to use a lambda expression; describe type inference and target typing
• Develop code that uses the built-in interfaces included in the java.util.function package, such as Function, Consumer, Supplier, UnaryOperator, Predicate, and Optional APIs, including the primitive and binary variations of the interfaces
• Develop code that uses a method reference, including refactoring a lambda expression to a method reference

Java Streams

• Describe the Stream interface and pipelines; create a stream by using the Arrays.stream() and  IntStream.range() methods; identify the lambda operations that are lazy
• Develop code that uses parallel streams, including decomposition operation and reduction operation in streams

Java Collections

• Develop code that uses diamond with generic declarations
• Develop code that iterates a collection, filters a collection, and sorts a collection by using lambda expressions
• Search for data by using methods, such as findFirst(), findAny(), anyMatch(), allMatch(), and noneMatch()
• Perform calculations on Java Streams by using count, max, min, average, and sum methods and save results to a collection by using the collect method and Collector class, including the averagingDouble, groupingBy, joining, partitioningBy methods
• Develop code that uses Java SE 8 collection improvements, including the Collection.removeIf(), List.replaceAll(), Map.computeIfAbsent(), and Map.computeIfPresent() methods
• Develop  code that uses the merge(), flatMap(), and map() methods on Java Streams

Assume the following:

• Missing package and import statements: If sample code do not include package or import statements, and the question does not explicitly refer to these missing statements, then assume that all sample code is in the same package, or import statements exist to support them.
• No file or directory path names for classes: If a question does not state the file names or directory locations of classes, then assume one of the following, whichever will enable the code to compile and run: 1. All classes are in one file 2. Each class is contained in a separate file, and all files are in one directory
• Unintended line breaks: Sample code might have unintended line breaks. If you see a line of code that looks like it has wrapped, and this creates a situation where the wrapping is significant (for example, a quoted String literal has wrapped), assume that the wrapping is an extension of the same line, and the line does not contain a hard carriage return that would cause a compilation failure.
• Code fragments: A code fragment is a small section of source code that is presented without its context. Assume that all necessary supporting code exists and that the supporting environment fully supports the correct compilation and execution of the code shown and its omitted environment.
• Descriptive comments: Take descriptive comments, such as "setter and getters go here," at face value. Assume that correct code exists, compiles, and runs successfully to create the described effect.

Already an OCP for Java SE 7 and looking to upgrade?

Upgrade Java SE 7 to Java SE 8 OCP Programmer | 1Z0-810

This exam retires on 29, Feb 2020.

Exam Details

Exam Title:	Upgrade Java SE 7 to Java SE 8 OCP Programmer
Exam Number:	1Z0-810
Exam Price:	₹10,475.00
Duration:	150 minutes
Passing score:	60%

## Upgrade java 8 certification oracle Syllabus Exam Topic

Lambda Expressions

• Describe and develop code that uses Java inner classes, including nested class, static class, local class, and anonymous classes
• Describe and write functional interfaces
• Describe a lambda expression; refactor the code that uses an anonymous inner class to use a lambda expression; describe type inference and target typing

Java Collections and Streams with Lambdas

• Develop code that iterates a collection by using the forEach() method and method chaining
• Describe the Stream interface and pipelines
• Filter a collection by using lambda expressions
• Identify the operations, on stream, that are lazy

Using Built-in Lambda Types

• Describe the interfaces of the java.util.function package
• Develop code that uses the Function interface
• Develop code that uses the Consumer interface
• Develop code that uses the Supplier interface
• Develop code that uses the UnaryOperator interface
• Develop code that uses the Predicate interface
• Develop code that uses the primitive and binary variations of the base interfaces of the java.util.function package
• Develop code that uses a method reference, including refactoring a lambda expression to a method reference

Parallel Streams

• Develop code that uses parallel streams
• Implement decomposition and reduction in streams

Method Enhancements

• Add static methods to interfaces
• Define and use a default method of an interface and describe the inheritance rules for the default method

Collection Operations with Lambda

• Develop code to extract data from an object by using the map() method
• Search for data by using methods such as findFirst(), findAny(), anyMatch(), allMatch(), and noneMatch()
• Describe the unique characteristics of the Optional class
• Perform calculations by using Java Stream methods, such as count(), max(), min(), average(), and sum()
• Sort a collection by using lambda expressions
• Develop code that uses the Stream.collect() method and Collectors class methods, such as averagingDouble(), groupingBy(), joining(), and partitioningBy()

Lambda Cookbook

• Develop code that uses Java SE 8 collection improvements, including Collection.removeIf(), List.replaceAll(), Map.computeIfAbsent(), and Map.computeIfPresent() methods
• Develop code that uses Java SE 8 I/O improvements, including Files.find(), Files.walk(), and lines() methods
• Use flatMap() methods in the Stream API
• Develop code that creates a stream by using the Arrays.stream() and IntStream.range() methods

Use Java SE 8 Date/Time API

• Create and manage date- and time-based events, including a combination of date and time in a single object, by using LocalDate, LocalTime, LocalDateTime, Instant, Period, and Duration
• Work with dates and times across time zones and manage changes resulting from daylight savings, including Format date and times values
• Define, create, and manage date- and time-based events using Instant, Period, Duration, and TemporalUnit

Assume the following:

• Missing package and import statements: If sample code do not include package or import statements, and the question does not explicitly refer to these missing statements, then assume that all sample code is in the same package, or import statements exist to support them.
• No file or directory path names for classes: If a question does not state the file names or directory locations of classes, then assume one of the following, whichever will enable the code to compile and run: 1. All classes are in one file 2. Each class is contained in a separate file, and all files are in one directory
• Unintended line breaks: Sample code might have unintended line breaks. If you see a line of code that looks like it has wrapped, and this creates a situation where the wrapping is significant (for example, a quoted String literal has wrapped), assume that the wrapping is an extension of the same line, and the line does not contain a hard carriage return that would cause a compilation failure.
• Code fragments: A code fragment is a small section of source code that is presented without its context. Assume that all necessary supporting code exists and that the supporting environment fully supports the correct compilation and execution of the code shown and its omitted environment.
• Descriptive comments: Take descriptive comments, such as "setter and getters go here," at face value. Assume that correct code exists, compiles, and runs successfully to create the described effect.

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