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Resumo para certificação Java SE 7 Programmer II.

Exam Topics

1 Java Class Design

2 Advanced Class Design

3 Object-Oriented Design Principles

4 Generics and Collections

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

• 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