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Oracle Certified Java

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Java Basics
 Define the scope of variables
 Define the structure of a Java class
 Create executable Java applications with a main method
 Import other Java packages to make them accessible in your code
Working With Java Data Types
 Declare and initialize variables
 Differentiate between object reference variables and primitive variables
 Read or write to object fields
 Explain an Object’s Lifecycle (creation, “dereference” and garbage collection)
 Call methods on objects
 Manipulate data using the String Builder class and its methods
 Creating and manipulating Strings
Using Operators and Decision Constructs
 Use Java operators
 Use parenthesis to override operator precedence
 Test equality between Strings and other objects using == and equals ()
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 Create if and if/else 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
 Declare and use an ArrayList
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
 Apply the static keyword to methods and fields
 Create an overloaded method
 Differentiate between default and user defined constructors
 Create and overload constructors
 Apply access modifiers
 Apply encapsulation principles to a class
 Determine the effect upon object references and primitive values when they are passed into methods that change the values
Working with Inheritance
 Implement inheritance
 Develop code that demonstrates the use of polymorphism
 Differentiate between the type of a reference and the type of an object
 Determine when casting is necessary
 Use super and this to access objects and constructors
 Use abstract classes and interfaces
Handling Exceptions
 Differentiate among checked exceptions, RuntimeExceptions and Errors
 Create a try-catch block and determine how exceptions alter normal program flow
 Describe what Exceptions are used for in Java
 Invoke a method that throws an exception
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 Recognize common exception classes and categories
Oracle Certified Associate: Java SE 7 Programmer II
Level 2: Java SE 7 Programmer II.
Exam information.
1Z0-804 Java SE 7 Programmer II
Certificate: Oracle Certified Professional, Java SE 7 Programmer II.
150 minutes
Number of Questions:
Passing Score:
Validated Against:
This exam is validated against Java SE 7.
Multiple Choice
Course Topics: Java SE 7 Programmer II.
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
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 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
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 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
 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.
 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.
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 Use Executor, ExecutorService, Executors, Callable, and Future to execute tasks using thread pools.
 Use the parallel Fork/Join Framework
 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