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1. 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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  • By: guest on 02 Jun 2017 01.26 am
    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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