1Z0-808: Java SE 8, Programmer I

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1Z0-808: Java SE 8, Programmer I

1Z0-808: Java SE 8, Programmer I

Dit examen is onderdeel van de Oracle Certified Associate certificering.

Trainingen

Exameneisen

Java Basics

  • 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 indepence, object orientation, encapsulation, etc.
  • Working with Java Data Types

  • 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 and Integer
  • Using Operators and Decision Constructs

  • Use Java operators; use parentheses to override operator precedence
  • Test equality between Strings and other objects using == and equals
  • Create if and if/else and ternary 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 arrays
  • 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 Encapsulations

  • 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 ffect upon object references and primitive values when they are passed into methods that change the values
  • Working with Inheritance

  • 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 and this to access objects and constructors
  • Use abstract classes and interfaces
  • Handling Exceptions

  • 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, ArrayInexOutOfBoundsException, ClaswsCastExeption)
  • Working with Selected classes form the Java API

  • Manipulate data using the StringBuilder class and its methods
  • Create and manipulate Strings
  • Create and manipulate calendar data using classes form 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
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