Oracle 1Z0-808 Exam Practice Questions
US$39
Every question with the correct answer and why the other options are wrong.
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This programming exam was challenging but approachable with the right materials. Exam questions gave good practice and helped me focus on key Java concepts efficiently. The practice questions was practical.
Three of the 234 questions in this pack
Question 1
Which statement is true about the switch statement?
Show answer and explanation
Correct answer: B. The break statement, at the end of each case block, is optional.
The break statement at the end of each case block is optional in Java. When omitted, execution continues to the next case (fall-through behavior). The default section is also optional, not required. Case label literals are compile-time constants and cannot be changed at runtime. The switch expression must evaluate to a single value, not a collection.
Why the other options are wrong
- A. The default section is optional in switch statements.
- C. Case label literals are constants determined at compile time and cannot be modified at runtime.
- D. The switch expression evaluates to a single value, not a collection of values.
Question 2
What is the name of the Java concept that uses access modifiers to protect variables and hide them within a class?
Show answer and explanation
Correct answer: A. Encapsulation
Encapsulation is the Java concept that uses access modifiers (public, private, protected) to protect variables and methods, hiding them within a class and controlling what is exposed to the outside world. Inheritance involves extending classes, abstraction hides complexity, instantiation creates objects, and polymorphism allows methods to have multiple forms.
Why the other options are wrong
- B. Inheritance is about extending classes and reusing functionality from parent classes.
- C. Abstraction is about hiding implementation details and showing only essential features.
- D. Instantiation is the process of creating an object from a class.
- E. Polymorphism is the ability of objects to take multiple forms or methods to have different implementations.
Question 3
Which statement best describes encapsulation?
Show answer and explanation
Correct answer: A. Encapsulation ensures that classes can be designed so that only certain fields and methods of an object are accessible from other objects.
Encapsulation ensures that classes can be designed with controlled access to fields and methods through access modifiers, allowing only certain members to be accessible from outside the class. This is the core purpose of encapsulation. Inheritability of methods is a feature of inheritance, not encapsulation. Abstract declarations relate to abstraction. Polymorphic parameter handling is a feature of polymorphism and inheritance.
Why the other options are wrong
- B. Method inheritance is a feature of inheritance, not encapsulation.
- C. Abstract field and method declarations relate to abstraction, not encapsulation.
- D. Polymorphic parameter substitution is a feature of inheritance and polymorphism, not encapsulation.
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How much of the Oracle 1Z0-808 bank is free?
234 questions in the bankEach step includes the one before, so buying only adds new questions.
- You are here10questionsFree sampleThree on this page, all ten as a PDF.Download the sample
- 177% of the bankPractice pageFree on the site, every answer explained.Go to the practice page
- 10344% of the bankHalf PackFree by email, as one PDF, every answer explained.Get the Half Pack
- 234100%, the whole bankFull pack, US$39Plus the questions-only PDF, monthly updates, refund if you fail.Get the full pack
What’s in the Oracle 1Z0-808 pack
- 234 questions mapped to the 1Z0-808 exam topics
- Answers and explanations for every question, including the wrong options
- A questions-only PDF for timed practice runs
- Delivered by email shortly after checkout
- Free monthly updates for as long as the exam is live
- Pass or your money back
A failed 1Z0-808 attempt means paying the exam fee again. This pack is US$39, paid once.
What makes the 1Z0-808 hard
1Z0-808 is the longest-serving Java certification exam in Oracle's lineup, and Oracle retires it on 30 November 2026. It launched with Java 8 in 2014, survived the retirements that took out the Java 11 two-exam path, and remains the only associate-level Java exam: the 11, 17 and 21 tracks all start at Professional. That is why it still has a steady stream of candidates, especially in markets where employers ask for an OCA. The format is 56 questions in 120 minutes with a 65% pass mark, and the questions are almost entirely code listings with a "what is the result" stem.
The exam topics are the Java 8 language at associate depth: class structure, the main method, packages and imports; primitives and wrappers, object references, operator precedence, promotion and casting, StringBuilder and String methods; if-else, switch and the ternary; one and two-dimensional arrays and ArrayList; loops with break and continue; overloading, static versus instance, varargs, constructors, access modifiers and pass-by-value semantics; polymorphism, casting, super and this, abstract classes and interfaces, and default methods; checked and unchecked exceptions, try-catch-finally, multi-catch and common runtime exceptions; and selected classes from the Java API including String, StringBuilder, the java.time date and time API, ArrayList, and a first look at lambda expressions with Predicate. The tricky questions are on evaluation order, integer promotion and what happens when a finally block returns.
About the exam
1Z0-808 (Java SE 8 Programmer I) earns the Oracle Certified Associate, Java SE 8 Programmer credential and is the prerequisite for the Java SE 8 Programmer II exam. It covers Java basics, data types, operators and decision constructs, arrays, loops, methods and encapsulation, inheritance, exceptions and selected classes from the Java API. No prerequisites.
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Yes. The pack is updated every month for as long as the exam is live, and updates are free for everyone who has bought it.
What if I fail the exam?
We refund the pack, or swap it for any other pack if you would rather keep studying. Sit the exam 7 to 30 days after buying, then send your official score report within 7 days of the exam date, as set out in the refund policy.
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99% of customers who prepare with a CertStash pack pass. If you do not, we refund the pack, or swap it for another pack.
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Deborah Olsen –
This programming exam was challenging but approachable with the right materials. Exam questions gave good practice and helped me focus on key Java concepts efficiently. The practice questions was practical.