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1Z0-804 再テスト - 1Z0-479 資格認定

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1Z0-804試験番号:1Z0-804問題集

試験科目:Java SE 7 Programmer II Exam

最近更新時間:2017-03-26

問題と解答:全150問 1Z0-804 再テスト

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1Z0-479試験番号:1Z0-479問題集

試験科目:Oracle Access Management Suite Plus 11g Essentials

最近更新時間:2017-03-26

問題と解答:全72問 1Z0-479 資格認定

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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

 

 


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