Java TreeSet Size Example

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import java.util.TreeSet;

public class JavaTreeSetSize {

	public static void main(String[] args) {

		TreeSet treeSet = new TreeSet();

		System.out.println("Size of TreeSet : " + treeSet.size());
		treeSet.add(new Integer("1"));
		treeSet.add(new Integer("2"));
		treeSet.add(new Integer("3"));

		System.out.println("Size of TreeSet after addition : " + treeSet.size());

		treeSet.remove(new Integer("1"));

		System.out.println("Size of TreeSet after removal : " + treeSet.size());
	}
}

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