Removed unnecessary file

src/main/java/Example.java

-import java.awt.event.*;
-import java.beans.PropertyChangeEvent;
-import java.beans.PropertyChangeListener;
-
-import javax.swing.*;
-
-@SuppressWarnings("serial")
-public class Example extends JFrame {
-    public Example() {
-        super();
-        OuterView theGUI = new OuterView();
-        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
-        setResizable(false);
-        add(theGUI);
-        pack();
-        setVisible(true);
-    }
-
-    public static void main(String[] args) {
-        SwingUtilities.invokeLater(new Runnable() {
-            public void run() {
-                new Example();
-            }
-        });
-    }
-}
-
-class OuterView extends JPanel {
-    private String innerValue = "";
-
-    public OuterView() {
-        super();
-        InnerView innerPanel = new InnerView();
-        innerPanel.addPropertyChangeListener(new PropertyChangeListener() {
-
-            @Override
-            public void propertyChange(PropertyChangeEvent evt) {
-                if (evt.getPropertyName().equals(InnerView.COMBO_CHANGED)) {
-                    innerValue = evt.getNewValue().toString();
-                    System.out.println("new value from inside of OuterView: "
-                            + innerValue);
-                }
-            }
-        });
-        JButton button = new JButton("display OuterView's model");
-        button.addActionListener(new ButtonListener());
-        add(innerPanel);
-        add(button);
-    }
-
-    private class ButtonListener implements ActionListener {
-        @Override
-        public void actionPerformed(ActionEvent ae) {
-            System.out.println("button was clicked. innerValue: " + innerValue);
-        }
-    }
-}
-
-class InnerView extends JPanel {
-    public static final String COMBO_CHANGED = "Combo Changed";
-    // private SwingPropertyChangeSupport pcSupport = new
-    // SwingPropertyChangeSupport(this);
-    String oldValue = "";
-
-    public InnerView() {
-        super();
-        String[] items = new String[] { "item 1", "item 2", "item 3" };
-        JComboBox comboBox = new JComboBox(items);
-        comboBox.addActionListener(new ComboBoxListener());
-        add(comboBox);
-
-    }
-
-    private class ComboBoxListener implements ActionListener {
-        @Override
-        public void actionPerformed(ActionEvent ae) {
-            String text = ((JComboBox) ae.getSource()).getSelectedItem()
-                    .toString();
-            firePropertyChange(COMBO_CHANGED, oldValue, text);
-            oldValue = text;
-            System.out.println("store " + text + " in InnerView's model");
-        }
-    }
-}
\ No newline at end of file