Thread: Database connection using NetBeans

Hello jcc285 and welcome to the Java Programming Forums

Hopefully this tutorial will be able to help you somewhere along the line.

Lesson: Using the NetBeans GUI Builder (The Java™ Tutorials > JavaBeans(TM))

Originally Posted by jcc285

Working in NetBeans 6.1 IDE. I have created a database with 4 tables. I have then, following the NetBeans tutorials, created 4 projects which each provide basic CRUD access to the tables. These projects are simple to create as, using the Java Desktop/Database Application templates all the work is done for you, however... What I cannot track down how to do is create a simple 'Switchboard' type front end which, in an application would run first and present the user with a set of 4 JButtons which, when clicked, will bring up the appropriate table access form. I have created a fifth project which contains the 'switchboard' form but how do I link this to the other four 'projects'. Is it an import or do I code the action on each button to open the relevant project ? Any help gratefully received, thanks.
John

I think I understand what you mean. Try this code.

There are 2 classes. MyClass1 & MyClass2. When the button on MyClass1 is clicked, MyClass2 is opened and vise versa. You can replicate this on your Switchboard program.

To hide the previous window use frame1.setVisible(false);

MyClass1

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
 
/**
 * JavaProgrammingForums.com
 */
 
public class MyClass1 {
 
    public static JFrame frame1 = new JFrame("JAVA WINDOW 1");
 
    public static void createAndShowGUI()  {
 
        frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        JButton button = new JButton(" >> Open myClass2 Application <<");
        //Add action listener to button
        button.addActionListener(new ActionListener() {
 
            public void actionPerformed(ActionEvent e)
            {
                //Execute when button is pressed
                javax.swing.SwingUtilities.invokeLater(new Runnable() {
                    public void run() {
                        frame1.setVisible(false);
                        MyClass2.createAndShowGUI();
 
                    }
                });
            }
        });      
 
        frame1.getContentPane().add(button);
        frame1.pack();
        frame1.setVisible(true);
    }
 
 
    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

MyClass2

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
 
/**
 * JavaProgrammingForums.com
 */
 
public class MyClass2{
 
    public static JFrame frame1 = new JFrame("JAVA WINDOW 2");
 
    public static void createAndShowGUI()  {
 
        frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        JButton button = new JButton(" >> Open myClass1 Application <<");
        //Add action listener to button
        button.addActionListener(new ActionListener() {
 
            public void actionPerformed(ActionEvent e)
            {
                //Execute when button is pressed
                javax.swing.SwingUtilities.invokeLater(new Runnable() {
                    public void run() {
                        frame1.setVisible(false);
                        MyClass1.createAndShowGUI();
                    }
                });
            }
        });      
 
        frame1.getContentPane().add(button);
        frame1.pack();
        frame1.setVisible(true);
    }
 
}

Hello r12ki,

To connect to a database and run SQL queries you need to read up on JDBC.

Java: Java JDBC: JDBC 101: How to connect to an SQL database with Java JDBC.

If you require more help with this, please start a new thread in our Database forum:

Database - Java Programming Forums