String username= textFieldUsername.getText();
String password= new String(passwordFieldpassword.getPassword());
JFrameMain jFrameMain = new JFrameMain();

if(username.equals("superadmin") && password.equals("123")){
jFrameMain.setVisible(true);
setVisible(false);
jFrameMain.AssignMenu("superadmin");
}
else if(username.equals("admin") && password.equals("123")){
jFrameMain.setVisible(true);
setVisible(false);
jFrameMain.AssignMenu("admin");
}
else if(username.equals("employee") && password.equals("123")){
jFrameMain.setVisible(true);
setVisible(false);
jFrameMain.AssignMenu("employee");
}
else
JOptionPane.showMessageDialog(null,"Netačan username ili password!");







public void AssignMenu(String role) {
if(role.equals("admin"))
mnSuperAdmin.setVisible(false);
if(role.equals("employee"))
mnSuperAdmin.setVisible(false);
mnAdmin.setVisible(false);


DialogLogin dialogLogin = new DialogLogin();
dialogLogin.setVisible(true);
setVisible(false);