null pointer exception

[bequick01]

Can someone help me solve this error please? After entering data into the textboxes , I get null pointer errors. I would appreciate any suggestions.

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JLabel;

public class NewClass5 extends JPanel implements ActionListener {

JTextField txInMortAmt = null;
JTextField txInTerm = null;
JTextField txInRate = null;
JLabel LabInMortAmt = null;
JLabel LabInTerm = null;
JLabel LabInRate= null;




public NewClass5()


{


JLabel LabInMortAmt = new JLabel("Mortgage Amount");
JTextField txInMortAmt = new JTextField(15);

JLabel LabInTerm = new JLabel("Mortgage Term");
JTextField txInTerm = new JTextField(15);

JLabel LabInRate = new JLabel("Interest Rate?");
JTextField txInRate = new JTextField(15);





add(LabInMortAmt);
add(txInMortAmt);

add(LabInTerm);
add(txInTerm);

add(LabInRate);
add(txInRate);
txInMortAmt.addActionListener(this);
txInTerm.addActionListener(this);
txInRate.addActionListener(this);
}

// Show text when user presses ENTER.
public void actionPerformed(ActionEvent ae) {
System.out.println(txInMortAmt.getText());
System.out.println(txInTerm.getText());
System.out.println(txInRate.getText());
}

public static void main(String[] args) {
JFrame frame = new JFrame();
frame.getContentPane().add(new NewClass5());

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS E);
frame.setSize(200, 200);
frame.setVisible(true);
}

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at NewClass5.actionPerformed(NewClass5.java:57)[/COLOR]

[FlyNn]

Please use code tags, and further more which is the like 57?

[sunde887]

Yes, to use code tags look below
[code ]<-omit space
YOUR CODE HERE
[/code]

And pointing out the line that causes the error is helpful as well.

[snotmare]

The problem is that you are declaring your members...

JTextField txInMortAmt = null;
JTextField txInTerm = null;
JTextField txInRate = null;

...but never assigning anything to them. The reason you are never assigning anything to them is because you are declaring your local variables with the same name...

JLabel LabInMortAmt = new JLabel("Mortgage Amount");
JTextField txInMortAmt = new JTextField(15);

JLabel LabInTerm = new JLabel("Mortgage Term");
JTextField txInTerm = new JTextField(15);

JLabel LabInRate = new JLabel("Interest Rate?");
JTextField txInRate = new JTextField(15);

... and incorrectly assuming that your members are being initialized. All you need to do is simply change your code to this...

JLabel LabInMortAmt = new JLabel("Mortgage Amount");
txInMortAmt = new JTextField(15);

JLabel LabInTerm = new JLabel("Mortgage Term");
txInTerm = new JTextField(15);

JLabel LabInRate = new JLabel("Interest Rate?");
txInRate = new JTextField(15);