Simple Java Problem

gpsstudent

I have created a Jtextfield in a Jframe.
I want it to act like a login.
I want to enter my username, press return, have that stored as a variable and then enter my password into the same box and press return for that also.

The action listener reads in the first 1 ok but won't read in the second
entry

Is there a command to like refresh the actionlistener for the next entry or what?

Anything would be useful

madramor

gpsstudent wrote:

The action listener reads in the first 1 ok but won't read in the second
entry
Is there a command to like refresh the actionlistener for the next entry or what?
Anything would be useful

actionlistner is always listening for the button to be pressed,
provided you added the actionlistener to the button.

it is a problem with your coding

gpsstudent

Its a textfield, i don't want to use buttons!
By pressing enter i enact the actionlistener

private void barcodeField_actionPerformed(ActionEvent e)
	{
		
		//assigns login to temporary variable for security purposes
		logintmp=barcodeField.getText().trim();
		//resets it to blank
		barcodeField.setText(null);
		//remove
		//JTextField barcodeField);
				
		//changes the text in the instruction box
		instructionArea.setText("Now enter your password!");
		//barcodeField_actionPerformed(e);
		passwordtmp=barcodeField.getText().trim();
		
		
		
		if((passwordtmp.equals(password))&&(logintmp.equals(login)))
			instructionArea.setText("Login Successful");
		
		else
			instructionArea.setText("Incorrect Username/Password!\n" +
					"Hit Login to try again!");
		
				
		
	}

Q_Ball

as far as i can see it wont work because the actionevent is in the process of being invoked. if

//changes the text in the instruction box
		instructionArea.setText("Now enter your password!");
		//barcodeField_actionPerformed(e);
		passwordtmp=barcodeField.getText().trim();

were outside the barcodeField_actionPerformed method i think it would work fine.

Is it a prerequisite to use just one box? Personally i'd use two. The code for a password type textfield below :

When the user hits RETURN, the text field fires an action event. 
    JPasswordField textfield = new JPasswordField("Initial Text");
    textfield.setEchoChar('*');
    textfield.addActionListener(actionListener);

amazing what a little google can do

[edit]
also
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/JPasswordField.html
[/edit]

madramor

the action listener runs in its own thread and is always waiting for the action
you should split your code in 2 and have a variables to say if its the first
or second call of the "return" action event.
and if tmp = 1 process first part
else if tmp = 2 process second part