Practice What Is A Class? (4.2.1) - Chapter 4: Object-Oriented Programming (OOP) in Java

Practice: What is a Class?

Lesson 4.2.1Object-Oriented Programming (OOP) in Java

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the purpose of a class in Java?
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Think about how you can define properties and behaviors.
Question 2.
Write a simple class called Dog with a method that prints its name.
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What properties and methods can a dog have?
3Question 3.
What is a class in Java?
- A real-world object
- A blueprint for creating objects
- A method or function
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Think of a class like a plan or design.
4Question 4.
An object is an instance of a class. True or False?
- True
- False
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Recall what an object represents in relation to its class.
Question 5.
Create a class Employee with attributes employeeId, name, and department. Include a constructor and a method to display the employee details. How would you instantiate this class?
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Make sure to initialize all attributes in the constructor.
Question 6.
Discuss the implications of using access modifiers in your class design. Provide an example of a class with private fields and public methods.
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Consider how you would protect important data.

5 more questions in this section. Enroll free to practise them all.