JTree From Vector In Java Example

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import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;

public class JavaJTreeUsingVectorExample extends JFrame {

	public static void main(String[] args) {
		JavaJTreeUsingVectorExample stt = new JavaJTreeUsingVectorExample();
		stt.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		stt.setSize(250, 250);
		stt.setVisible(true);
	}

	public JavaJTreeUsingVectorExample() {
		Object[] genealogy = { "A", "B", "C", "D", "E", "F" };
		java.util.Vector vector = new java.util.Vector() {
			public String toString() {
				return "DD";
			}
		};
		vector.addElement("1");
		vector.addElement("2");
		vector.addElement("3");
		vector.addElement("4");
		genealogy[0] = vector;
		JTree tree = new JTree(genealogy);
		tree.setRootVisible(true);
		JScrollPane jsp = new JScrollPane(tree);
		getContentPane().add(jsp);
	}
}
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