Basic Java Login Form Help - JPasswordField Error

[TheFitz]

Hi All,

I know this is probably a really basic question, however, I am making my first entry into Java programming and I am struggling a little with the coding and errors I'm getting.

My main issue is with this piece of code:

if(txtPassword.getText().equals("")||txtPassword.getText().equals(null))

It tells me that getText() is deprecated, but a) I'm not sure exactly what that means and b) what I'm supposed to do about it.

Also, if someone has a second, can you have a look over my code and see if I am doing this to the proper standards or have I missed something simple.

package Forms;

import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JPasswordField;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.Color;
import javax.swing.SwingConstants;

public class frmLogon {

	private JFrame frmLogon;
	private JTextField txtUserID;
	private JPasswordField txtPassword;
	
	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					frmLogon window = new frmLogon();
					window.frmLogon.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the application.
	 */
	public frmLogon() {
		initialize();
	}

	/**
	 * Initialize the contents of the frame.
	 */
	private void initialize() {
		frmLogon = new JFrame();
		frmLogon.setTitle("Logon");
		frmLogon.setBounds(100, 100, 253, 171);
		frmLogon.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frmLogon.getContentPane().setLayout(null);
		
		txtUserID = new JTextField();
		txtUserID.setBounds(77, 11, 152, 20);
		frmLogon.getContentPane().add(txtUserID);
		txtUserID.setColumns(10);
		
		txtPassword = new JPasswordField();
		txtPassword.setBounds(77, 42, 152, 20);
		frmLogon.getContentPane().add(txtPassword);
		
		JLabel lblUserId = new JLabel("User ID:");
		lblUserId.setBounds(10, 14, 57, 14);
		frmLogon.getContentPane().add(lblUserId);
		
		JLabel lblPassword = new JLabel("Password:");
		lblPassword.setBounds(10, 42, 57, 14);
		frmLogon.getContentPane().add(lblPassword);

		final JLabel lblError = new JLabel(" ");
		lblError.setHorizontalAlignment(SwingConstants.CENTER);
		lblError.setForeground(Color.RED);
		lblError.setBounds(10, 73, 219, 14);
		frmLogon.getContentPane().add(lblError);
		
		JButton btnLogon = new JButton("Logon");
		btnLogon.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseClicked(MouseEvent arg0) {
			
			//public final Boolean isEmpty()
				
			if(txtUserID.getText().equals("")||txtUserID.getText().equals(null))
				{
					System.out.println("No User ID");
					lblError.setText("Please Enter A User ID");
				}
			else
				{
					if(txtPassword.getText().equals("")||txtPassword.getText().equals(null))
						{
							System.out.println("No Password");
							lblError.setText("Please Enter A Password");
						}
					else
						{
							System.out.println("This is the value: xx" + txtUserID.getText() + "xx");
							System.out.println("This is the value: xx" + txtPassword.getText() + "xx");
							lblError.setText("  ");
						}
				}
			}	
			
		});
		btnLogon.setBounds(20, 98, 89, 23);
		frmLogon.getContentPane().add(btnLogon);
		
		JButton btnQuit = new JButton("Quit");
		btnQuit.setBounds(119, 98, 89, 23);
		frmLogon.getContentPane().add(btnQuit);

	}
}

Many thanks for ANY help or support you can provide. I'm new to Java, have done some eTraining, but it's still a mystery.

Truely, Many Thanks,

Fitz

Fitz
Did you know, there are 10 types of people in this world:
* Those who understand binary
and
* Those who Don't!!

 

[tom62]

If a method is deprecated then this basically means that it scheduled to be removed in a later Java version. It is still available for backwards compatibility, but it is advised to use another method as replacement.

The JPasswordField.getText() method is deprecated, because it is considered to be less secure than the JPasswordField.getPassword() method (that replaces it).