Mastering Java: The Ultimate Quiz for 'Thinking in Java'

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Mastering Java: The Ultimate Quiz for 'Thinking in Java'. Dive deep into Java with multiple-choice questions. Challenge yourself with quiz questions designed to test and improve your understanding of the 'Thinking in Java' book. Get ready for your exam!

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Which method allows adding groups of elements to a Collection?

  1. addAll

  2. putAll

  3. append

  4. insertAll

The correct answer is: addAll

The addAll method is the correct method for adding groups of elements to a Collection. This method allows you to add elements from another Collection or an array to the existing Collection. This is different from the other options listed. The putAll method is used for adding key-value pairs to a Map. The append method is used for adding elements to the end of a StringBuilder or StringBuffer object. The insertAll method is not a valid method for adding elements to a Collection.

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