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Thread: Working with HashSet and TreeSet
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Working with HashSet and TreeSet
Java Code:import java.util.HashSet; import java.util.Iterator; import java.util.Set; import java.util.TreeSet; public class ItemSet { public static void main(String args[]) { String names[] = { "Item 1", "Item 2", "Item 3"}; Set moons = new HashSet(); int namesLen = names.length; int index; for (int i = 0; i < 100; i++) { index = (int) (Math.random() * namesLen); moons.add(names[index]); } Iterator it = moons.iterator(); while (it.hasNext()) { System.out.println(it.next()); } System.out.println("---"); Set orderedMoons = new TreeSet(moons); it = orderedMoons.iterator(); while (it.hasNext()) { System.out.println(it.next()); } } }
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