Java se 8 fundamentals
- 1. Java SE 8 Fundamentals What Is a Java Program? Introduction to Computer Programs Key Features of theJava Language The Java Technology and Development Environment Running/testing a Java program Creating a Java Main Class Java Classes The main Method Data In the Cart Introducing variables Working with Strings Working with numbers Manipulating numeric data Managing Multiple Items Working with Conditions Working with a List of Items Processing a list of items Describing Objects and Classes Working with objects and classes Defining fields and methods Declaring, Instantiating, and Initializing Objects Working with Object References Doing more with Arrays Introducing the NetBeans IDE Introducing the Soccer League UseCase Manipulating and Formatting the Data in Your Program Using theString Class Using theJava API Docs Using theStringBuilder Class Moreabout primitive data types The remaining numeric operators Promoting and casting variables Creating and Using Methods Using methods Method arguments and return values Static methods and variables How Arguments are Passed to a Method Overloading a method Using Encapsulation Access Control Encapsulation Overloading constructors More on Conditionals Relational and conditional operators Moreways to use if/else constructs Using Switch Statements Using theNetBeans Debugger More on Arrays and Loops Working with Dates Parsing the args Array Two-dimensional Arrays Alternate Looping Constructs Nesting Loops The ArrayList class Using Inheritance Overview of inheritance Working with subclasses and superclasses Overriding methods in thesuperclass Introducing polymorphism Creating and extending abstract classes Using Interfaces Polymorphismin the JDK foundation classes Using Interfaces Using theList Interface Introducing Lambda expressions Handling Exceptions Handling Exceptions: An overview Propagation of exceptions Catching and throwing exceptions Handling multiple exceptions and errors Course objectives Write Java code that uses variables, arrays, conditional and loop constructs Manipulateprimitive numeric data and string data using Java operators Create Java classes and use object references Access the fields and methods of an object Manipulatetext data using themethods of the String and StringBuilder classes Use casting without losing precision or causing errors Declare, override, and invoke methods Access and create staticfields and methods Use classes from the java.time and java.time.format packages to format and print thelocal date and time Encapsulate a class using access modifiers and overloaded constructors Define and implement a simple class hierarchy Demonstratepolymorphismby implementing a Java Interface Use a Predicate Lambda expression as the argument to a method Handle a checked exception in a Java application
- 2. Java SE 8 Programmer II (1z0-809 - Oracle Certified Professional, Java SE 8 Programmer ) 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
- 3. 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 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
- 4. 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 Objectives 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
- 5. Java SE 8 Programmer I 1Z0-808 AssociatedCertifications: Oracle CertifiedAssociate, Java SE 8 Programmer Exam Product Version: Java SE Java Basics Define thescope of variables Define thestructureof a Java class Create executable Java applications with a main method; run a Java program from thecommand line; including console output. Import other Java packages to make them accessible in your code Compare and contrast the features and components of Java such as: platformindependence, object orientation, encapsulation, etc. Working With Java Data Types Declare and initialize variables (including casting of primitive data types) Differentiate between object reference variables and primitive variables Know how to read or write to object fields Explain an Object's Lifecycle (creation, "dereference by reassignment" and garbage collection) Develop code that uses wrapper classes such as Boolean, Double, and Integer. Using Operators and Decision Constructs Use Java operators;including parentheses to override operator precedence Test equality between Strings and other objects using == and equals () Create if and if/else and ternary constructs Use a switch statement Creating and Using Arrays Declare, instantiate, initialize and use a one-dimensional array Declare, instantiate, initialize and use multi-dimensional array Using Loop Constructs Create and use while loops Create and use for loops including the enhanced for loop Create and use do/while loops Compare loop constructs Use break and continue Working with Methods and Encapsulation Create methods with arguments and return values; including overloaded methods Apply thestatickeyword to methods and fields Create and overload constructors;including impact on default constructors Apply access modifiers Apply encapsulation principles to a class Determine theeffect upon object references and primitive values when they are passed into methods that change the values Working with Inheritance Describe inheritance andits benefits Develop code that demonstrates theuse of polymorphism; includingoverridingandobject type versus reference type Determine when castingis necessary Use super andthis to access objects andconstructors Use abstract classes andinterfaces Handling Exceptions Differentiate amongcheckedexceptions, uncheckedexceptions, andErrors Create a try-catchblockanddetermine howexceptions alter normal programflow Describe the advantages of Exceptionhandling Create andinvoke a methodthat throws an exception "Recognize commonexception classes (such as NullPointerException, ArithmeticExcpetion,ArrayIndexOutOfBoundsException, ClassCastException)" Workingwith Selected classes from the Java API Manipulate data usingthe StringBuilder class andits methods CreatingandmanipulatingStrings Create andmanipulate calendar datausingclasses from java.time.LocalDateTime, java.time.LocalDate, java.time.LocalTime, java.time.format.DateTimeFormatter, java.time.Period Declare anduse an ArrayList of a giventype Write a simple Lambda expression that consumes a Lambda Predicate expression