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1Z0-811 Primitives, Strings and Operators Practice Question

Arrange the steps to create and use a simple Java inheritance hierarchy in the correct order.

Drag steps to the numbered slots on the right, or tap a step then tap a slot.

Steps
Order
1Step 1
2Step 2
3Step 3
4Step 4
5Step 5

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Create the superclass, then create the subclass with extends, then override methods if needed, then add new members, then use the subclass.

First create the superclass, then create subclass with extends, override methods if needed, add new members, and then use the subclass.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✓

    Create the superclass, then create the subclass with extends, then override methods if needed, then add new members, then use the subclass.

    Why this is correct

    This is the correct order because the superclass must exist before a subclass can extend it. After creating the subclass, overriding allows customization, then new members can be added, and finally the subclass is used.

  • ✗

    Create the subclass, then create the superclass, then override methods, then add new members, then use the subclass.

    Why it's wrong here

    This is incorrect because the superclass must be created first. A subclass cannot extend a class that doesn't exist yet. Starting with the subclass would cause a compilation error.

  • ✗

    Create the superclass, then create the subclass with extends, then add new members, then override methods, then use the subclass.

    Why it's wrong here

    This is incorrect because adding new members before overriding methods is not wrong per se, but the typical logical order is to first override inherited behavior before adding new functionality. Also, overriding after adding new members may lead to confusion about which methods are available.

  • ✗

    Create the superclass, then create the subclass without using extends (copy code), then override methods, then add new members, then use the subclass.

    Why it's wrong here

    This is incorrect because without using the 'extends' keyword, the subclass does not actually inherit from the superclass. This defeats the purpose of inheritance and leads to code duplication and lack of polymorphism.

About these practice questions

Courseiva writes every 1Z0-811 question from scratch — 481 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This 1Z0-811 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-811 exam.