Brand New to Java - GUI issue

Hello all I am brand new to Java and I am really trying to carry over what I have learned from .Net. I have done VB for two years now and now learning Java and I can't figure out why I can't get this GUI to pop up. Here is what I am working with thus far:

Code:

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package langInterp;


import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JLabel;






//Start of the Class for the front end.
@SuppressWarnings("serial")
public class frontEnd extends JPanel{
       

frontEnd(){
        BorderLayout border = new BorderLayout();
        JFrame frame = new JFrame();
        frame.setLayout(border);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
        frame.setSize(500,250);
        frame.setLocation(450,450);
       
                JTextField textInput = new JTextField("", 25);
        JButton btnGo = new JButton("Enter");
        btnGo.addActionListener(new ActionListener() {
                public void actionPerformed (ActionEvent e){
                       
                }
        });
       
                JLabel dispResult = new JLabel("");
        frame.add(textInput, BorderLayout.NORTH);
        frame.add(btnGo, BorderLayout.SOUTH);
        frame.add(dispResult, BorderLayout.CENTER);
       
       
}
       


       
       
       

        public static void main(String[] args){
javax.swing.SwingUtilities.invokeLater(new Runnable(){
        public void run(){
                new frontEnd();
        }
});
        }
}

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The frame pops up and is completely black. Any ideas?

setVisible should be the last method called