Java swing

Java swing

How to combine two java files?

View Answers

October 21, 2011 at 4:11 PM

By creating an object of another page on action listener.

1)LoginDemo.java:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
class LoginDemo extends JFrame{
JButton SUBMIT,ADD;
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");
ADD=new JButton("Create Account");
panel=new JPanel(new GridLayout(4,2));
panel.add(label1);
panel.add(text1);
panel.add(label2);
panel.add(text2);
panel.add(SUBMIT);
panel.add(ADD);
add(panel,BorderLayout.CENTER);
SUBMIT.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
String value1=text1.getText();
String value2=text2.getText();
Connection con = null;
String url = "jdbc:mysql://localhost:3306/";;
String db = "test";
String driver = "com.mysql.jdbc.Driver";
String user = "root";
String pass = "root";
String user1="";
String pass1="";
try{
Class.forName(driver);
con = DriverManager.getConnection(url+db, user, pass);
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)) {
NextPage page=new NextPage();
page.setVisible(true);
JLabel label = new JLabel("Welcome:"+value1);
page.getContentPane().add(label);
}
else{
JOptionPane.showMessageDialog(null,"Incorrect login or password","Error",JOptionPane.ERROR_MESSAGE);
}
}
catch(Exception e){
System.out.println(e.getMessage());
}
}
});
ADD.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
CreateAccount account=new CreateAccount();
account.setVisible(true);
}
});
}
public static void main(String arg[]) {
LoginDemo frame=new LoginDemo();
frame.pack();
frame.setVisible(true);
}
}

October 21, 2011 at 4:11 PM

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("First Name");
label2=new JLabel("Last Name");
label3=new JLabel("User Name");
label4=new JLabel("Password");
label5=new JLabel("Address");
label6=new JLabel("Phone No");
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();

Connection con = null;
String url = "jdbc:mysql://localhost:3306/";;
String db = "test";
String driver = "com.mysql.jdbc.Driver";
String user = "root";
String pass = "root";
String user1="";
String pass1="";
try{
Class.forName(driver);
con = DriverManager.getConnection(url+db, user, pass);
Statement st = con.createStatement();
ResultSet rs=st.executeQuery("Select * from login where username='"+value3+"'");
String usern="";
if(rs.next()){
usern=rs.getString("username");
JOptionPane.showMessageDialog(null,"Invalid UserName");
}
else {

int k=st.executeUpdate("insert into login(firstname,lastname,username,password,address,contactno) values('"+value1+"','"+value2+"','"+value3+"','"+value4+"','"+value5+"','"+value6+"')");
JOptionPane.showMessageDialog(null,"Data is successfully saved");
}

}
catch(Exception e){}
}
});
add(panel);
setSize(300,400);
setVisible(true);
}
}

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