swings:how to link from one form to another form

Hello Friend,

You can try the following code:

1)LoginDemo.java:

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

class LoginDemo{
 JButton SUBMIT,NEWUSER;
 JFrame f;
 JLabel label1,label2;
 final JTextField  text1;
 final JPasswordField text2;
    LoginDemo(){
        f=new JFrame();
        f.getContentPane().setLayout(null);
        label1 = new JLabel();
        label1.setText("UserName:");
        label1.setBounds(400,50,100,20);
        text1 = new JTextField(25);
        text1.setBounds(500,50,100,20);
        label2 = new JLabel();
        label2.setText("Password:");
        label2.setBounds(400,80,100,20);
        text2 = new JPasswordField(25);
        text2.setBounds(500,80,100,20);
        SUBMIT=new JButton("Login");
        SUBMIT.setBounds(400,110,100,20);

        NEWUSER=new JButton("Create Account");
        NEWUSER.setBounds(500,110,200,20);

        f.add(label1);
        f.add(text1);
        f.add(label2);
        f.add(text2);
        f.add(SUBMIT);
        f.add(NEWUSER);
        f.setSize(1024,768);
        f.setVisible(true);
        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").newInstance();
            Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/mysql", "root", "root");
                 Statement st = con.createStatement();
                 ResultSet res = st.executeQuery("SELECT * FROM  login where username='"+value1+"' and password='"+value2+"'");
                 while (res.next()) {
                 user1 = res.getString("username");
                 pass1 = res.getString("password");
        }
        if(value1.equals(user1) && value2.equals(pass1)) {
        JOptionPane.showMessageDialog(null,"Welcome");
        }
        else{
        JOptionPane.showMessageDialog(null,"Incorrect login or password","Error",JOptionPane.ERROR_MESSAGE);
                }
        }
                catch(Exception e){
        System.out.println(e.getMessage());
                }
        }
        });
        NEWUSER.addActionListener(new ActionListener(){
        public void actionPerformed(ActionEvent ae){
        CreateAccount acc=new CreateAccount();
        }
        });
    }
        public static void main(String arg[])   {
        LoginDemo frame=new LoginDemo();
            }
}

continue..

2)CreateAccount.java:

import javax.swing.*;
import java.awt.*;
 import java.sql.*;
 import java.awt.event.*;
class CreateAccount extends JFrame{
    JTextField text1,text2,text3,text4,text5;
    JPasswordField pass1;
    JLabel label1,label2,label3,label4,label5,label6;
    JPanel panel;
    JButton button;
    CreateAccount()  {
    text1=new JTextField(15);
    text2=new JTextField(15);
    text3=new JTextField(15);
    pass1=new JPasswordField(15);
    text4=new JTextField(15);
    text5=new JTextField(15);
    label1=new JLabel("Name");
    label2=new JLabel("Address");
    label3=new JLabel("Contact No");
    label4=new JLabel("Email");
    label5=new JLabel("City");
    label6=new JLabel("State");
    button=new JButton("Save");
    panel=new JPanel(new GridLayout(7,2));
    panel.add(label1);
    panel.add(text1);
    panel.add(label2);
    panel.add(text2);
    panel.add(label3);
    panel.add(text3);
    panel.add(label4);
    panel.add(pass1);
    panel.add(label5);
    panel.add(text4);
    panel.add(label6);
    panel.add(text5);
    panel.add(button);
    button.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                String value1=text1.getText();
                String value2=text2.getText();
                String value3=text3.getText();
                String value4=pass1.getText();
                String value5=text4.getText();
                String value6=text5.getText();
    try{
                 Class.forName("com.mysql.jdbc.Driver");
                 Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
                 Statement st = con.createStatement();
                  int k=st.executeUpdate("insert into employee(name,address,contactNo,email,city,state) values('"+value1+"','"+value2+"','"+value3+"','"+value4+"','"+value5+"','"+value6+"')");
                 JOptionPane.showMessageDialog(null,"Data is successfully inserted");
                 }
            catch(Exception e){
            System.out.println(e);
            }
            }
            });
            add(panel);
            setSize(300,400);
            setVisible(true);
      }
      public static void main(String args[]){
          CreateAccount acc=new CreateAccount();
      }   
}

Thanks