Hi Friend,

Try the following:
1)LoginDemo.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
class LoginDemo extends JFrame{
JButton SUBMIT;
JPanel panel;
JLabel label1,label2;
final JTextField text1;
final JPasswordField text2;
LoginDemo(){
label1 = new JLabel();
label1.setText("UserName:");
text1 = new JTextField(15);
label2 = new JLabel();
label2.setText("Password:");
text2 = new JPasswordField(15);
SUBMIT=new JButton("Login");
panel=new JPanel(new GridLayout(4,2));
panel.add(label1);
panel.add(text1);
panel.add(label2);
panel.add(text2);
panel.add(SUBMIT);
add(panel,BorderLayout.CENTER);
SUBMIT.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
String value1=text1.getText();
String value2=text2.getText();
String user1="";
String pass1="";
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test";, "root", "root");
Statement st = con.createStatement();
ResultSet res = st.executeQuery("SELECT * FROM login where username='"+value1+"' && password='"+value2+"'");
while (res.next()) {
user1 = res.getString("username");
pass1 = res.getString("password");
}
if (value1.equals(user1) && value2.equals(pass1)) {
HomePage page=new HomePage();
page.setVisible(true);

}
else{
JOptionPane.showMessageDialog(null,"Incorrect login or password","Error",JOptionPane.ERROR_MESSAGE);
}
}
catch(Exception e){
System.out.println(e.getMessage());
}
}
});
}
public static void main(String arg[]) {
LoginDemo frame=new LoginDemo();
frame.pack();
frame.setVisible(true);
}
}

continue...

2)HomePage.java:

import java.io.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.sql.*;
import java.util.*;

class HomePage extends JFrame{
JPanel p1,p2,p3;
JTabbedPane tp;


HomePage(){
p1=new JPanel(new GridLayout(5,2));
p2=new JPanel(new GridLayout(5,2));
p3=new JPanel(new GridLayout(2,2));
tp=new JTabbedPane();
tp.addTab("Add Record",p1);
tp.addTab("Edit Record",p2);
tp.addTab("Delete Record",p3);
add(tp);
setSize(300,150);
setVisible(true);
}
public static void main(String z[]){
HomePage pro=new HomePage();
}
}

For more information, visit the following link:

http://www.roseindia.net/java/example/java/swing/add_edit_and_delete_employee_inf.shtml

Thanks