Jar not working? [migrated]

Jar not working? [migrated]

I've created an application (in Java) and make it password protected: when
I run/compile my code in Eclipse it works fine but when I created a jar
file and run that jar it was not working: it shows me the initial frame
but nothing works after that:
Initially when I created first jar that one works fine but when I just add
password reset capability it just stop working:
Before answer please keep in mind that code works fine in compiler (i.e
Eclipse) but not working when converted into a jar.
Conversion procedure: File>Export>Runnable Jar (option chosen - package
required libraries into jar)
Output that works in Eclipse - screen shot image here
One that's not working (executed from jar) screen shot image here
Piece of code related (consider each and every thing declared and
initialized)
public JFrame psFrame=new JFrame("Password Check");
private JPasswordField psField;
private static int tries=5;
static boolean condition=false;
private String Check,password;
//////////// CONSTRUCTOR ///////////
public MenusAndButtons(){
super("Explorer");
extraString=null;
try {passwordSetter();}catch (FileNotFoundException
e){e.printStackTrace();}
paswardCheck();
}
public synchronized void paswardCheck(){
Check=null;
psFrame.setSize(400, 120);
psFrame.setLocation(480, 300);
psField=new JPasswordField("",30);
psField.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource()==psField){
Check=e.getActionCommand();
if(tries!=1){
if(Check!=null){
if(password.equals(Check)){
JOptionPane.showMessageDialog(null, "Welcome
to Explorer ", "Welcome",
JOptionPane.INFORMATION_MESSAGE);
condition=true;
psFrame.dispose();
Mnb();}
else{tries--;
JOptionPane.showMessageDialog(null,"You
Entered a Wrong Password.\nYou are Left With
" +tries+ " more Tries.\nPlease complete The
Password Check with Correct Password\n",
"Warrnning ",JOptionPane.WARNING_MESSAGE);
psField.setText(null); }
}else{JOptionPane.showMessageDialog(null,"You Entered
Nothing in Password Field.\nPlease Enter a
Password.","Null value Password
Check",JOptionPane.ERROR_MESSAGE);
psField.setText(null);}
}else{JOptionPane.showMessageDialog(null,"You Entered a Wrong Password
5 Times.\nExplorer is Quiting Now.","Password Check Failed
",JOptionPane.ERROR_MESSAGE);
psFrame.dispose();
System.exit(0);}
}
}});
psFrame.setLayout(new FlowLayout());
psFrame.add(new JLabel("Enter Password"));
psFrame.add(psField);
psFrame.setResizable(false);
psFrame.setVisible(true);
}
public void passwordSetter() throws FileNotFoundException{
Scanner sc=new Scanner(new File("PasswordContainer.txt"));
while(sc.hasNext())
password=sc.nextLine();
sc.close();
}
public void passwordresetter() throws Exception{
String old=JOptionPane.showInputDialog(null,"Please Enter current
Password","Current Password Check",JOptionPane.CANCEL_OPTION);
if(old.equals(password)){
String usererntry=JOptionPane.showInputDialog(null, "Please Enter new
Password","Reset Password",JOptionPane.CANCEL_OPTION);
if(usererntry.length()>=6){
Formatter fp=new Formatter("PasswordContainer.txt");
fp.format("%s",usererntry);
fp.close();
JOptionPane.showMessageDialog(null,"You've successfully Change Your
Password","Password Change Conformation",JOptionPane.PLAIN_MESSAGE);
}else{
JOptionPane.showMessageDialog(null,"You Password Must Contain at least
6 Characters\nPlease Retype the New Password ");
passwordresetter();}
}
else{JOptionPane.showMessageDialog(null,"You Entered Wrong
Password\nPlease Retype the Current Password ");
passwordresetter();
}
}