Form does not appear even after this.setVisible(true) [JAVA] [Archive]

vikkyhacks

November 29th, 2012, 10:06 AM

Hello, I recently started GUI programming in Java with Swing. I am using NetBeans IDE and have attached my complete project with this thread.

I have two classes.
Login -> Is the GUI part with all labels, buttons ... (Without main method)
Main -> Having main method.

(I did add the class path for the SeaGlassLookAndFeel)

THE FORM DOES NOT APPEAR EVEN AFTER win.setVisible(true) -> Need help !!!

/* Main.java */
package main;

public class Main {

public static void main(String[] args) throws Exception {
Login win = new Login();
win.setVisible(true);
}
}

/* Login.java */
package main;

import javax.swing.UIManager;

public class Login extends javax.swing.JPanel {

public Login() throws Exception
{
UIManager.setLookAndFeel("com.seaglasslookandfeel.SeaGlassLookAndFeel");
initComponents();
}

@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
cUser = new javax.swing.JTextField();
cPass = new javax.swing.JTextField();
cLogin = new javax.swing.JButton();
cOut = new javax.swing.JLabel();

jLabel1.setFont(new java.awt.Font("Ubuntu", 1, 16)); // NOI18N
jLabel1.setText("Login Window");

jLabel2.setText("Username");

jLabel3.setText("Password");

cUser.setName("");

cLogin.setLabel("Login");
cLogin.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
cLoginMouseClicked(evt);
}
});

cOut.setForeground(new java.awt.Color(255, 0, 0));

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout .Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILI NG, layout.createSequentialGroup()
.addContainerGap(27, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILI NG, layout.createSequentialGroup()
.addGap(83, 83, 83)
.addComponent(cLogin, javax.swing.GroupLayout.PREFERRED_SIZE, 64, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(81, 81, 81))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILI NG, layout.createSequentialGroup()
.addGap(59, 59, 59)
.addComponent(jLabel1)
.addGap(66, 66, 66))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(jLabel3))
.addGap(52, 52, 52)
.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.LEADING)
.addComponent(cOut)
.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.LEADING, false)
.addComponent(cUser)
.addComponent(cPass, javax.swing.GroupLayout.PREFERRED_SIZE, 115, javax.swing.GroupLayout.PREFERRED_SIZE)))))
.addGap(20, 20, 20))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout .Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel1)
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(cUser, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(cPass, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.Component Placement.RELATED)
.addComponent(cOut)
.addPreferredGap(javax.swing.LayoutStyle.Component Placement.RELATED)
.addComponent(cLogin, javax.swing.GroupLayout.PREFERRED_SIZE, 34, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 28, Short.MAX_VALUE))
);
}// </editor-fold>

private void cLoginMouseClicked(java.awt.event.MouseEvent evt) {
String password = cPass.getText();
String username = cUser.getText();
if("pass".equals(password) && "admin".equals(username))
cOut.setText("Logged In");
else
cOut.setText("Invalid Login");
}

// Variables declaration - do not modify
private javax.swing.JButton cLogin;
private javax.swing.JLabel cOut;
private javax.swing.JTextField cPass;
private javax.swing.JTextField cUser;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
// End of variables declaration
}