Practice Constructors (4.3) - Chapter 4: Object-Oriented Programming (OOP) in Java

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a constructor?
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Think about how an object gets its initial state.
Question 2.
What does a default constructor do?
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Focus on the word 'default'.
3Question 3.
What is a constructor in Java?
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It's essential for object initialization.
4Question 4.
Are constructors allowed to have a return type?
- True
- False
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Remember the definition of constructors.
Question 5.
Create a class Book with two constructors: one default and one that takes parameters for title and author.
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Think about what values you'd want as defaults.
Question 6.
Demonstrate constructor overloading by implementing a basic Shape class that can accept different parameters for defining shapes (like circles and squares).
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Consider how different shapes require different values.

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