Oracle Certified Associate, Java SE 8 Programmer (Exam 1Z0-808)
Oracle Certified Professional, Java SE 8 Programmer (Exam 1Z0-809)
- OCA Oracle Certified Associate Java SE 8 Programmer I STUDY GUIDE 1Z0-808
- OCP Oracle Certified Professional Java SE 8 Programmer II Study Guide Exam 1Z0-809
- Oracle Certified OCA Java 8 1Z0-808 Mock Exams Practice Tests/Questions - 这个貌似收费软件模拟测试,发现这个可以购买,Enthuware Mock Exams ¥74.83 感觉可以接受。
- JDK 1.8 API
- Define the scope of variables
- Define the structure of a Java class
- Create executable Java applications with a main method; run a Java program from the command line; produce console output
- Import other Java packages to make them accessible in your code
- Compare and contrast the features and components of Java such as: platform independence, object orientation, encapsulation, etc.
- Use Java operators; use parentheses to override operator precedence
- Test equality between Strings and other objects using
==
andequals ()
- Create if and if/else and ternary constructs
- Use a switch statement
- 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
andcontinue
- Describe inheritance and its benefits
- Develop code that makes use of polymorphism; develop code that overrides methods; differentiate between the type of a reference and the type of an object
- Determine when casting is necessary
- Use
super
andthis
to access objects and constructors - Use abstract classes and interfaces
- Manipulate data using the
StringBuilder
class and its methods - Create and manipulate Strings
- Create and manipulate calendar data using classes from
java.time.LocalDateTime
,java.time.LocalDate
,java.time.LocalTime
,java.time.format.DateTimeFormatter
,java.time.Period
- Declare and use an
ArrayList
of a given type - Write a simple Lambda expression that consumes a Lambda Predicate expression
- Declare and initialize variables (including casting of primitive data types)
- Differentiate between object reference variables and primitive variables
- Know how to read or write to object fields
- Explain an Object's Lifecycle (creation, "dereference by reassignment" and garbage collection)
- Develop code that uses wrapper classes such as
Boolean
,Double
, andInteger
- Declare, instantiate, initialize and use a one-dimensional array
- Declare, instantiate, initialize and use multi-dimensional arrays
- Create methods with arguments and return values; including overloaded methods
- Apply the
static
keyword to methods and fields - Create and overload constructors; differentiate between default and user defined 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
- Differentiate among checked exceptions, unchecked exceptions, and Errors
- Create a try-catch block and determine how exceptions alter normal program flow
- Describe the advantages of Exception handling
- Create and invoke a method that throws an exception
- Recognize common exception classes (such as
NullPointerException
,ArithmeticException
,ArrayIndexOutOfBoundsException
,ClassCastException
)
-
Missing package and import statements: If sample code do not include package or import statements, and the question does not explicitly refer to these missing statements, then assume that all sample code is in the same package, or import statements exist to support them.
-
No file or directory path names for classes:
If a question does not state the file names or directory locations of classes, then assume one of the following, whichever will enable the code to compile and run:
- All classes are in one file
- Each class is contained in a separate file, and all files are in one directory
-
Unintended line breaks: Sample code might have unintended line breaks. If you see a line of code that looks like it has wrapped, and this creates a situation where the wrapping is significant (for example, a quoted String literal has wrapped), assume that the wrapping is an extension of the same line, and the line does not contain a hard carriage return that would cause a compilation failure.
-
Code fragments: A code fragment is a small section of source code that is presented without its context. Assume that all necessary supporting code exists and that the supporting environment fully supports the correct compilation and execution of the code shown and its omitted environment.
-
Descriptive comments: Take descriptive comments, such as "setter and getters go here," at face value. Assume that correct code exists, compiles, and runs successfully to create the described effect.