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Oracle Java Certification Exam OCA 1Z0-808 Preparation Part3

Publicado en 09 Jul 2024

Udemy UK

What you'll learn

  • Java Basics, Data Types, Operators, Decision Constructs, Arrays, Loops, Methods, Encapsulation, Inheritance, Handling Exceptions, Java API, Lambda expressions.
  • To be prepared to pass the Oracle certification Java Associate OCA 1Z0-808.
  • To become confident to get certified for Java.
  • To be able to demonstrate your understanding of Java to future employers.

Requirements

  • You don't need a prior certification experience. This works as preparation for your first certification.
  • You should already know quite a bit about Java programming.
  • You should have a desire to improve your Java skills and/or prepare for a Java certification.

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

Who this course is for:

  • Everybody who is preparing for the Oracle Certification Associate Java OCA 1Z0-808.
  • Everybody who is preparing for a Java job interview.
  • Everybody who wants to learn more about Java by questions and their explanations.
  • Everybody who wants to test their knowledge of Java.
  • Every Java programmer who wants to improve their knowledge of Java.
  • Every programmer who wants to switch to Java.

Debes tener en cuenta que los cupones duran maximo 4 dias o hasta agotar 1000 inscripciones,pero puede vencer en cualquier momento. Obten el curso con cupon haciendo clic en el siguiente boton:

(Cupón válido para las primeras 1000 inscripciones): 62F1FF9FF467FB5D1801
Udemy UK
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