Oracle Java Certification Exam OCA 1Z0-808 Preparation 2023 | Free Udemy Course

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-Codewhich you can run to better understand the topic.You can download the Try-It-Yourself-Code for all questions.(The download link will be in your welcome message.)Exam SyllabusJava BasicsDefine the scope of variablesDefine the structure of a Java classCreate executable Java applications with a main method; run a Java program from the command line; produce console outputImport other Java packages to make them accessible in your codeCompare and contrast the features and components of Java such as: platform independence, object orientation, encapsulation, etc.Working With Java Data TypesDeclare and initialize variables (including casting of primitive data types)Differentiate between object reference variables and primitive variablesKnow how to read or write to object fieldsExplain an Object's Lifecycle (creation, "dereference by reassignment" and garbage collection)Develop code that uses wrapper classes such as Boolean, Double, and IntegerUsing Operators and Decision ConstructsUse Java operators; use parentheses to override operator precedenceTest equality between Strings and other objects using == and equals ()Create if and if/else and ternary constructsUse a switch statementCreating and Using ArraysDeclare, instantiate, initialize and use a one-dimensional arrayDeclare, instantiate, initialize and use multi-dimensional arraysUsing Loop ConstructsCreate and use while loopsCreate and use for loops including the enhanced for loopCreate and use do/while loopsCompare loop constructsUse break and continueWorking with Methods and EncapsulationCreate methods with arguments and return values; including overloaded methodsApply the static keyword to methods and fieldsCreate and overload constructors; differentiate between default and user defined constructorsApply access modifiersApply encapsulation principles to a classDetermine the effect upon object references and primitive values when they are passed into methods that change the valuesWorking with InheritanceDescribe inheritance and its benefitsDevelop code that makes use of polymorphism; develop code that overrides methods; differentiate between the type of a reference and the type of an objectDetermine when casting is necessaryUse super and this to access objects and constructorsUse abstract classes and interfacesHandling ExceptionsDifferentiate among checked exceptions, unchecked exceptions, and ErrorsCreate a try-catch block and determine how exceptions alter normal program flowDescribe the advantages of Exception handlingCreate and invoke a method that throws an exceptionRecognize common exception classes (such as NullPointerException, ArithmeticException, ArrayIndexOutOfBoundsException, ClassCastException)Working with Selected classes from the Java APIManipulate data using the StringBuilder class and its methodsCreate and manipulate StringsCreate and manipulate calendar data using classes from java.time.LocalDateTime, java.time.LocalDate, java.time.LocalTime, java.time.format.DateTimeFormatter, java.time.PeriodDeclare and use an ArrayList of a given typeWrite a simple Lambda expression that consumes a Lambda Predicate expressionDisclaimer:The Oracle Java OCA 1Z0-808 exam is very tough!!!You need to program with Java for a couple of years and/or study for about half a year.This can not be the only resource to prepare for the Oracle Java OCA exam.You also need books/ebooks, video tutorials (Udemy, Youtube) and other collections of questions (Enthuware).I wanted to put in as many question as possible.Udemy only allows six practice tests.The result is that each practice test is having about 190 questions.Therefore you can not really test, how fast you arebut you can download the Java code from the questions and really work with it in your IDE.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.

Course Content:

Sections are minimized for better readability, click the section title to view the course content