Course objectives

After completing this course, students will be able to:

• • • Creating high-performing multi-threaded applications
    • Creating Java technology applications that leverage the object-oriented features of the Java language, such as encapsulation, inheritance, and polymorphism
    • Implementing input/output (I/O) functionality to read from and write to data and text files and understand advanced I/O streams
    • Executing a Java technology application from the command line
    • Manipulating files, directories and file systems using the JDK NIO.2 specification
    • Creating applications that use the Java Collections framework
    • Performing multiple operations on database tables, including creating, reading, updating and deleting using both JDBC and JPA technology
    • Searching and filter collections using Lambda Expressions
    • Implementing error-handling techniques using exception handling
    • Using Lambda Expression concurrency features

Course outlines

• 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 Sub classing
• • 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 collection
• 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
• Concurrency
• • 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
• Localization
• • 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