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Questions and Answers
Which package in Java contains the ArrayList class?
Which package in Java contains the ArrayList class?
- java.collection
- java.lang
- java.util (correct)
- java.arraylist
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)
- 0
- 5
- 15
Which interface does the ArrayList class implement in Java?
Which interface does the ArrayList class implement in Java?
- Iterable
- Collection
- ArrayListInterface
- List (correct)
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Study Notes
ArrayList in Java
- The
ArrayListclass is contained in thejava.utilpackage. - An empty
ArrayListconstructed using the default constructor has an initial capacity of 10. - The
ArrayListclass implements theListinterface in Java.
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