Java Online Quiz – Test your knowledge in 7 min

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This Java online quiz will help you to clear your java concepts and also check your java knowledge. It will increase your confidence while appearing for Java interview.

Bookmark other java quizzes as well in the series of 7 java quizzes. Some of them are as below:

So, All The Best for this Java Online Quiz.


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8 Responses

  1. Oleg says:

    Q4. Iterable ! Why Set/List ?

  2. Greg says:

    Q3. Map does not implement Collection

  3. Greg says:

    Q18. ConcurrentSkipListMap

  4. Stephen says:

    Java QUizz part 2, question 4 : Collection Interface is the root interface – the corret answer ; wheras List extends Collection.
    There are other mistakes – but generally the level is good and I had pleasure to review

  5. Nicholas Trunfio says:


  6. Bongani Mguni says:

    quiz 2
    question 4 its Collection Interface

  7. Bongani Mguni says:

    quiz 2
    Q7 its a list a set doesn’t permit storage of multiple null values. Since it doesn’t duplicate values

  8. Anushya S says:

    Q8. nextIndex() and previousIndex() are methods of which interface?

    The previous index and next index in an ArrayList can be obtained using the methods previousIndex() and nextIndex() respectively of the ListIterator interface.

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