Please help me with the following code

can anyone help me please with this problem. When I click on the button in the layerOne Class it creates TestLayerTwo () Below is my TestLayerOne Class where I have TestLayertwo () created under "btnActionPerformed". what I should do there so that LayerTwo shows up.

Code :

 
// TestLayerOne Class
package test.gui;
 
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
 
import javax.swing.*;
 
public class TestLayerOne extends JPanel {
 
	TestLayerTwo layerTwo;
    private JButton btn;
 
    public TestLayerOne() {
        initComponents();
    }
 
 
    private void initComponents() {
 
 
        btn = new JButton();
        setLayout(new GridBagLayout());
 
        btn.setText("Button");
        btn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                btnActionPerformed(evt);
            }
        });
        add(btn, new java.awt.GridBagConstraints());
    }
 
    private void btnActionPerformed(ActionEvent evt) {
 
    //	layerTwo
    	layerTwo = new TestLayerTwo ();
 
 
    	System.out.println("This is a Test");
    }
 
 
}
 
 
// TabPanels Class
package test.gui;
 
 
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
 
 
public class TabPanels extends JFrame{ 
 
	JFrame myFrame = null;
	// main to run and test this part of the program
/*	
public static void main(String [] args)  {  
    new TabPanels(); 
} 
*/
	public TabPanels() { 
	    JTabbedPane tp = new JTabbedPane(); 
	    add(tp); 
 
	    tp.addTab("Tab1",TestLayerOne()
	    tp.addTab("Tab2", TestLayerOne()); 
	    tp.addTab("Tab3", TestLayerOne()); 
 
	    setPreferredSize(new Dimension(1360,768));
	    //   myFrame.setPreferredSize(new Dimension(1360,768)); 
	    pack();
	    setVisible(true);
	} 
}
 
// layerTwoClass
package test.gui;
 
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JLabel;
import javax.swing.JPanel;
 
 
public class TestLayerTwo extends JPanel {
 
    /**
     * Creates new form TestLayerTwo
     */
    public TestLayerTwo() {
        initComponents();
    }
 
 
    private void initComponents() {
 
        lbl = new JLabel();
 
        setLayout(new GridBagLayout());
 
        lbl.setText("This is a Test ");
        add(lbl, new GridBagConstraints());
    }
    private JLabel lbl;
 
}