SelectCustomerGUI.java

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;


public class SelectCustomerGUI extends JFrame implements ActionListener{


     JButton mainMenu = new JButton("Main Menu");
     JButton viewCustomerDetails = new JButton("View Customer Details");

    public SelectCustomerGUI() {


        JPanel mainPanel=new JPanel(new GridLayout(30,1));

        //Create a scrollbar using JScrollPane and add panel
        JScrollPane scrollBar=new JScrollPane( mainPanel,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        int eb = 2;

        Border theBorder = BorderFactory.createCompoundBorder(
                BorderFactory.createEmptyBorder(eb, eb, eb, eb),
                BorderFactory.createLineBorder(Color.GRAY));
        setSize(650, 650);
        for(int i=0;i<30;i++)
        {
            JPanel apanel = new JPanel(new GridLayout(1,1));

            JLabel jLabel = new JLabel("Customer Name");
            JRadioButton radio = new JRadioButton();

            apanel.setBorder(theBorder);
            apanel.add(jLabel);
            apanel.add(radio);
            mainPanel.add(apanel);

        }


        //Set close operation for JFrame
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        viewCustomerDetails.addActionListener(this);
        mainMenu.addActionListener(this);
        JPanel containerPanel = new JPanel(new GridLayout(2,1));
        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
        buttonPanel.add(viewCustomerDetails);
        buttonPanel.add(mainMenu);

        containerPanel.add(scrollBar);
        containerPanel.add(buttonPanel);
        add(containerPanel);

        setResizable(false);


        //Make JFrame visible. So we can see it.
        setVisible(true);



}

    @Override
    public void actionPerformed(ActionEvent e) {
        if(e.getActionCommand().equalsIgnoreCase("Main Menu"))
        {
            MainMenuGUI main = new MainMenuGUI();
            this.dispose();

        }
        if(e.getActionCommand().equalsIgnoreCase("View Customer Details"))
        {
            ViewCustomerDetailsGUI details = new ViewCustomerDetailsGUI ();
            this.dispose();

        }

    }}