Practice More Questions From: Quiz 7 : Collections/Maps
Q:
What type of collection would we use if we wanted to eliminate duplicates?
Q:
Are elements in a HashSet ordered?
Q:
Which collection does not extend the Collection interface?
Q:
Which type of Set would you use respectively? 1. If you desire fast access and don’t care about ordering 2. If you need elements sorted
Q:
What kinds of data type(s) can we store in a Collection?
Q:
What kinds of data type(s) can we store in an array?
Q:
What will be the output of the following program? class Main { public static void main(String[] args) { HashSet set = new HashSet(); set.add(“Hello”); set.add(“Hello”); set.add(“Goodbye”); for (String s: set) { System.out.print(s); } } }
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