Java ArrayList Methods Quiz

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Questions and Answers

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?

  • 10 (correct)
  • 0
  • 5
  • 15

Which interface does the ArrayList class implement in Java?

  • Iterable
  • Collection
  • ArrayListInterface
  • List (correct)

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Study Notes

ArrayList in Java

  • The ArrayList class is contained in the java.util package.
  • An empty ArrayList constructed using the default constructor has an initial capacity of 10.
  • The ArrayList class implements the List interface in Java.

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