Java oca - Study guides, Class notes & Summaries

OCA Exam Questions & Answers 2023/2024 Can you have static classes in Java? - ANSWER-Yes and no. You cannot have top-level static classes, but you may have nested static classes (these are mainly used in defining one-off, utility and/or library classes where instantiation would not make sense). You can basically declare the class final to mimic static class behavior since you wouldn't want to extend a static class in the first place. ArithmeticException - ANSWER-Thrown by the JVM when c...

What year was the Java programming created correct answers1995 What does OCA stand for correct answersOracle Certified Associate What are the 2 tests for Java developers provided by Oracle correct answersOCA and OCP The full declaration of a method is called the method ____ correct answerssignature True or False - can you add a multiline comment within a multiline comment? correct answersfalse How many public classes can be added to a single file correct answers1 Write the synt...

OCA Java SE 8 Programmer certification Questions and Answers 100% Verified

Java 113 Questions for Oracle Certified Associate Java SE 8 Programmer 1 (Latest 2023)

What is a class? correct answersAll the parts and characterics of one building block. What are the optianal Specifiers? correct answers- static - abstract - final What is a Object? correct answersA combination of data and procedures working on the available data. What is a Method? correct answersA primare elelment often calles function or procedures. What is a Field? correct answersA primare element generlly known as variables. What are the members of a class? correct answersMet...

Package statement Import statements Comments Class declaration { Variables Comments Constructors Methods Nested classes Nested interfaces Enum } correct answersStructure of a Java class public final class Runner extends Person implements Athlete {} correct answersComponents of a class declaration using an example - Per Java naming conventions, package names should all be in lowercase. - The package and subpackage names are separated using a dot (.). - Package names foll...

Platform Independence: Write Once, Run Anywhere One of the main benefits of Java. This means that any code written with java only needs to be compiled once, rather than needing to be recompiled for different operating systems Verbose, Clear Syntax Used to tell the JVM which kind of information to see. The three verbose options supported by JVM are verbose: class, verbose: garbage collection, and verbose: Java Native Interface. Garbage collection, finalize An object is eligible for garbage ...

What are the components of a Java class file? * Package statement * Import statements * Comments * Class declaration { Variables Comments Constructors Methods Nested classes Nested interfaces Enum } If a class includes a package statement, where must it be placed? The first statement of the class file What are the two ways a class can use another packages classes? 1. By declaring an import statement of the fully qualified package + class name 2. By delcaring a variab...

Each object of a class has its own copy of each non-static member variable. - True Instance methods may access local variables of static methods. - False All methods in a class are implicitly passed a 'this' parameter when called. - False A static method can call other non-static methods in the same class by using the 'this' keyword. - False A class may contain both static and non-static variables and both static and non-static methods. - True It is possible for two classes to be the ...