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Exam Code: 1z0-067

Exam Name: Upgrade Oracle9i/10g/11g OCA to Oracle Database 12c OCP

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1z0-067 free exam dumps Total Q&A: 177 Questions and Answers

Last Update: 2016-11-22

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Exam Code: 1Z0-804

Exam Name: Java SE 7 Programmer II Exam

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1Z0-804 Training for exam Total Q&A: 150 Questions and Answers

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Java SE 7 Programmer II

Exam Number: 1Z0-804 / 1Z0-804

Duration: 150 minutes

Associated Certifications:
Oracle Certified Professional, Java SE 7 Programmer

Number of Questions:
90

Exam Product Version: Java SE,

Passing Score: 65%

Exam Price: US$ 150

Validated Against:

This exam is validated against Java SE 7.

format: Multiple Choice

 

Recommended Training

• 
  Java SE 7 Programming

Exam Preparation Seminar

• 
  Certification Exam Prep Seminar: Java SE 7 Programmer II


• 
  Exam Prep Seminar Discount Package: OCA Java SE 7 Programmer II

Practice Exams

• 
  
  
  Practice Exams: Oracle authorized practice exam from Kaplan SelfTest:1Z0-804: Java SE 7 Programmer II
  
  


• 
  
  
  Practice Exams: Oracle practice exam from Transcender: 1Z0-804 DevCert: Java SE 7 Programmer II
  
  


• 
  Sample Questions

 

TOPICS

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 

• 
  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