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import java.util.TreeSet;
public class Main {
public static void main(String[] args) {
TreeSet<Integer> tSet = new TreeSet<Integer>();
tSet.add(new Integer("1"));
tSet.add(new Integer("2"));
tSet.add(new Integer("3"));
System.out.println(tSet);
System.out.println("Was 2 removed from TreeSet ? " + tSet.remove(new Integer("2")));
System.out.println(tSet);
}
}
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