Oracle Java Certification Exam OCA 1Z0-808 Preparation Part3

Get certified for Java! Prepare for your Java Certification Exam OCA 1Z0-808 with 6 Practice Tests

Description


Now is the time to get certified for Java!

Oracle Certification Associate Java OCA 1Z0-808.

There are six Practice Tests with preparation questions from all knowledge areas.

Every question has an explanation and a Try-It-Yourself-Code

which you can run to better understand the topic.

You can download the Try-It-Yourself-Code for all questions.

Exam Syllabus

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


Total Students33
Original Price($)799
Sale PriceFree
Number of lectures0
Number of quizzes6
Total Reviews0
Global Rating0
Instructor NameCord Mählmann

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