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

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Prepare for your Java exam with our ultimate quiz based on 'Thinking in Java'. Engage with expertly crafted questions that enhance your learning process. Perfect for Java enthusiasts looking to solidify their knowledge!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which method allows adding groups of elements to a Collection?

addAll
putAll
append
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.