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Questions and Answers
What package is ArrayList implemented in?
What package is ArrayList implemented in?
- java.lang
- java.util (correct)
- java.net
- java.io
What is the initial capacity of an empty ArrayList constructed using the default constructor?
What is the initial capacity of an empty ArrayList constructed using the default constructor?
- 10 (correct)
- 5
- 20
- 15
Which interface does ArrayList provide a dynamic array-like implementation of?
Which interface does ArrayList provide a dynamic array-like implementation of?
- List (correct)
- Queue
- Map
- Set
What does the method add(E element) do?
What does the method add(E element) do?
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How is an object created from a class in Java?
How is an object created from a class in Java?
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What is the purpose of creating multiple objects of one class in Java?
What is the purpose of creating multiple objects of one class in Java?
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How can an object of a class be accessed in another class in Java?
How can an object of a class be accessed in another class in Java?
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What should the name of the Java file match?
What should the name of the Java file match?
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What is the role of a class constructor in Java?
What is the role of a class constructor in Java?
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What does the keyword 'class' signify in Java?
What does the keyword 'class' signify in Java?
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