Esta página tem o objetivo de abordar os tópicos da prova de certificação Oracle Certified Associate, Java SE 8 Programmer, código da prova 1Z0-808. Saiba como preparar, agendar e realizar a prova, para ver clique aqui.
Comandos utilizados nesta página foram executados no Java versão 8.
O conteúdo da prova para a certificação pode ser visualizado no site da Oracle no link abaixo:
☕ Java OCA
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 independence, 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 Encapsulation
✓ 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
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, ArrayIndexOutOfBoundsException, ClassCastException)
Working with Selected classes from the Java API
✓ 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
