Java Programming - Objects and Collections - Discussion
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Read more:"Success has many fathers, while failure is an orphan."
- (Proverb)
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| 8. |
What will be the output of the program?
TreeSet map = new TreeSet();
map.add("one");
map.add("two");
map.add("three");
map.add("four");
map.add("one");
Iterator it = map.iterator();
while (it.hasNext() )
{
System.out.print( it.next() + " " );
}
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| [A]. |
one two three four | | [B]. |
four three two one | | [C]. |
four one three two | | [D]. |
one two three four one |
Answer: Option A
Explanation:
TreeSet assures no duplicate entries; also, when it is accessed it will return elements in natural order, which typically means alphabetical.
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