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Java SE 8: Programming (D84838GC10)

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Detaillierter Kursinhalt

Java Platform Overview
  • Defining how the Java language achieves platform independence
  • Differentiating between the Java ME, Java SE, and Java EE Platforms
  • Evaluating Java libraries, middle-ware, and database options
  • Defining how the Java language continues to evolve
Java Syntax and Class Review
  • Creating simple Java classes
  • Creating primitive variables
  • Using operators
  • Creating and manipulate strings
  • Using if-else and switch statements
  • Iterating with loops: while,do-while,for,enhanced for
  • Creating arrays
  • Using Java fields, constructors, and methods
Encapsulation and Subclassing
  • Using encapsulation in Java class design
  • Modeling business problems using Java classes
  • Making classes immutable
  • Creating and use Java subclasses
  • Overloading methods
Overriding Methods, Polymorphism, and Static Classes
  • Using access levels: private, protected, default, and public.
  • Overriding methods
  • Using virtual method invocation
  • Using varargs to specify variable arguments
  • Using the instanceof operator to compare object types
  • Using upward and downward casts
  • Modeling business problems by using the static keyword
  • Implementing the singleton design pattern
Abstract and Nested Classes
  • Designing general-purpose base classes by using abstract classes
  • Constructing abstract Java classes and subclasses
  • Applying final keyword in Java
  • Distinguish between top-level and nested classes
Interfaces and Lambda Expressions
  • Defining a Java interface
  • Choosing between interface inheritance and class inheritance
  • Extending an interface
  • Defaulting methods
  • Anonymous inner classes
  • Defining a Lambda Expression
Collections and Generics
  • Creating a custom generic class
  • Using the type inference diamond to create an object
  • Creating a collection by using generics
  • Implementing an ArrayList
  • Implementing a TreeSet
  • Implementing a HashMap
  • Implementing a Deque
  • Ordering collections
Collections Streams, and Filters
  • Describing the Builder pattern
  • Iterating through a collection using lambda syntax
  • Describing the Stream interface
  • Filtering a collection using lambda expressions
  • Calling an existing method using a method reference
  • Chaining multiple methods together
  • Defining pipelines in terms of lambdas and collections
Lambda Built-in Functional Interfaces
  • Listing the built-in interfaces included in java.util.function
  • Core interfaces - Predicate, Consumer, Function, Supplier
  • Using primitive versions of base interfaces
  • Using binary versions of base interfaces
Lambda Operations
  • Extracting data from an object using map
  • Describing the types of stream operations
  • Describing the Optional class
  • Describing lazy processing
  • Sorting a stream
  • Saving results to a collection using the collect method
  • Grouping and partition data using the Collectors class
Exceptions and Assertions
  • Defining the purpose of Java exceptions
  • Using the try and throw statements
  • Using the catch, multi-catch, and finally clauses
  • Autoclose resources with a try-with-resources statement
  • Recognizing common exception classes and categories
  • Creating custom exceptions
  • Testing invariants by using assertions
Java Date/Time API
  • Creating and manage date-based events
  • Creating and manage time-based events
  • Combining date and time into a single object
  • Working with dates and times across time zones
  • Managing changes resulting from daylight savings
  • Defining and create timestamps, periods and durations
  • Applying formatting to local and zoned dates and times
I/O Fundamentals
  • Describing the basics of input and output in Java
  • Read and write data from the console
  • Using streams to read and write files
  • Writing and read objects using serialization
File I/O (NIO.2)
  • Using the Path interface to operate on file and directory paths
  • Using the Files class to check, delete, copy, or move a file or directory
  • Using Stream API with NIO2
  • Describing operating system task scheduling
  • Creating worker threads using Runnable and Callable
  • Using an ExecutorService to concurrently execute tasks
  • Identifying potential threading problems
  • Using synchronized and concurrent atomic to manage atomicity
  • Using monitor locks to control the order of thread execution
  • Using the java.util.concurrent collections
The Fork-Join Framework
  • Parallelism
  • The need for Fork-Join
  • Work stealing
  • RecursiveTask
  • RecursiveTask
Parallel Streams
  • Reviewing the key characteristics of streams
  • Describing how to make a stream pipeline execute in parallel
  • List the key assumptions needed to use a parallel pipeline
  • Defining reduction
  • Describing why reduction requires an associative function
  • Calculating a value using reduce
  • Describing the process for decomposing and then merging work
  • Listing the key performance considerations for parallel streams
Database Applications with JDBC
  • Defining the layout of the JDBC API
  • Connecting to a database by using a JDBC driver
  • Submitting queries and get results from the database
  • Specifying JDBC driver information externally
  • Performing CRUD operations using the JDBC API
  • Describing the advantages of localizing an application
  • Defining what a locale represents
  • Read and set the locale by using the Locale object
  • Building a resource bundle for each locale
  • Calling a resource bundle from an application
  • Changing the locale for a resource bundle