Practice Collections Utility Class (8.6) - Chapter 8: Java Collections Framework (Extended Theory)

Practice: Collections Utility Class

Lesson 8.6Java Collections Framework (Extended Theory)

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What method would you use to sort a list?
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Think about the action you would take to organize items.
Question 2.
What does Collections.reverse() do?
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Consider what happens when you flip something over.
3Question 3.
What is the main purpose of the Collections Utility Class?
- To create new collections
- To provide methods for collection manipulation
- To manage memory usage
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Think about simplifying tasks in programming.
4Question 4.
The method Collections.shuffle() randomly changes the order of elements in a list.
- True
- False
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Consider how you might randomly select different outfits.
Question 5.
Create a list of 10 random numbers, sort them, and then remove the maximum value from that list. What code would achieve this?
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Think about sorting and then finding the largest number.
Question 6.
In a programming tournament, you have a list of players' scores. Write a code snippet to shuffle the scores and then print the maximum score from the shuffled list.
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Focus first on randomizing before finding the highest score.

5 more questions in this section. Enroll free to practise them all.