The small java puzzle

August 20, 2007 | development, java

Given the following code, what will be the outcome?

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import java.util.Set;
import java.util.TreeSet;

public class A {
    public static void main(String[] args) {
      Set sets = new TreeSet();
      sets.add("1");
      sets.add("3");
      sets.add(new Integer(2));
      System.out.println(sets.isEmpty());
    }
}

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