1Z0-804: Java SE 7 Programmer II

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1Z0-804: Java SE 7 Programmer II

1Z0-804: Java SE 7 Programmer II

Dit examen is onderdeel van de Oracle Certified Professional certificering.

Trainingen
Exameneisen

Java Class Design
Use access modifiers: private, protected, and public
Override methods
Overload constructors and methods
Use the instanceof operator and casting
Use virtual method invocation
Override the hashCode, equals, and toString methods from the Object class to improve the functionality of your class.
Use package and import statements

Advanced Class Design
Identify when and how to apply abstract classes
Construct abstract Java classes and subclasses
Use the static and final keywords
Create top-level and nested classes
Use enumerated types

Object-Oriented Design Principles
Write code that declares, implements and/or extends interfaces
Choose between interface inheritance and class inheritance
Apply cohesion, low-coupling, IS-A, and HAS-A principles
Apply object composition principles (including has-a relationships)
Design a class using a Singleton design pattern
Write code to implement the Data Access Object (DAO) pattern
Design and create objects using a factory pattern

Generics and Collections
Create a generic class
Use the diamond for type inference
Analyze the interoperability of collections that use raw types and generic types
Use wrapper classes, autoboxing and unboxing
Create and use List, Set and Deque implementations
Create and use Map implementations
Use java.util.Comparator and java.lang.Comparable
Sort and search arrays and lists

String Processing
Search, parse and build strings (including Scanner, StringTokenizer, StringBuilder, String and Formatter)
Search, parse, and replace strings by using regular expressions, using expression patterns for matching limited to: . (dot), * (star), + (plus), ?, d, D, s, S, w, W, b. B, [], ().
Format strings using the formatting parameters: %b, %c, %d, %f, and %s in format strings.

Exceptions and Assertions
Use throw and throws statements
Develop code that handles multiple Exception types in a single catch block
Develop code that uses try-with-resources statements (including using classes that implement the AutoCloseable interface)
Create custom exceptions
Test invariants by using assertions

Java I/O Fundamentals
Read and write data from the console
Use streams to read from and write to files by using classes in the java.io package including BufferedReader, BufferedWriter, File, FileReader, FileWriter, DataInputStream, DataOutputStream, ObjectOutputStream, ObjectInputStream, and PrintWriter

Java File I/O (NIO.2)
Operate on file and directory paths with the Path class
Check, delete, copy, or move a file or directory with the Files class
Read and change file and directory attributes, focusing on the BasicFileAttributes, DosFileAttributes, and PosixFileAttributes interfaces
Recursively access a directory tree using the DirectoryStream and FileVisitor interfaces
Find a file with the PathMatcher interface
Watch a directory for changes with the WatchService interface

Building Database Applications with JDBC < /div>
Describe the interfaces that make up the core of the JDBC API (including the Driver, Connection, Statement, and ResultSet interfaces and their relationship to provider implementations)
Identify the components required to connect to a database using the DriverManager class (including the jdbc URL)
Submit queries and read results from the database (including creating statements, returning result sets, iterating through the results, and properly closing result sets, statements, and connections)
Use JDBC transactions (including disabling auto-commit mode, committing and rolling back transactions, and setting and rolling back to savepoints)
Construct and use RowSet objects using the RowSetProvider class and the RowSetFactory interface
Create and use PreparedStatement and CallableStatement objects

Threads
Create and use the Thread class and the Runnable interface
Manage and control thread lifecycle
Synchronize thread access to shared data
Identify code that may not execute correctly in a multi-threaded environment.

Concurrency
Use collections from the java.util.concurrent package 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 package 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
Read and set the locale by using the Locale object
Build a resource bundle for each locale
Call a resource bundle from an application
Format dates, numbers, and currency values for localization with the NumberFormat and DateFormat classes (including number format patterns)
Describe the advantages of localizing an application
Define a locale using language and country codes

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