Java Self Coded Program run errors

Code
import java.awt.EventQueue;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedWriter;

import java.io.FileWriter;

import java.io.IOException;

import java.io.PrintWriter;



import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JTextField;

import javax.swing.JButton;



public class OhNoHeDidnt {



    private JFrame frmOhNoHe;

    private JTextField textField;

    private JLabel lblReason;

    private JLabel lblProof;

    private JTextField textField_1;

    private JTextField textField_2;

    private JButton btnNewButton;



    /**

     * Launch the application.

     */

    public static void main(String[] args) {

        EventQueue.invokeLater(new Runnable() {

            public void run() {

                try {

                    OhNoHeDidnt window = new OhNoHeDidnt();

                    window.frmOhNoHe.setVisible(true);

                } catch (Exception e) {

                    e.printStackTrace();

                }

            }

        });

    }



    /**

     * Create the application.

     */

    public OhNoHeDidnt() {

        initialize();

    }



    /**

     * Initialize the contents of the frame.

     */

    private void initialize() {

        frmOhNoHe = new JFrame();

        frmOhNoHe.setResizable(false);

        frmOhNoHe.setIconImage(Toolkit.getDefaultToolkit().getImage(OhNoHeDidnt.class.getResource("/image/black-woman-attitude.png")));

        frmOhNoHe.setTitle("ONHD");

        frmOhNoHe.setBounds(100, 100, 227, 177);

        frmOhNoHe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frmOhNoHe.getContentPane().setLayout(null);



        JLabel lblUser = new JLabel("User:");

        lblUser.setBounds(12, 13, 38, 16);

        frmOhNoHe.getContentPane().add(lblUser);



        textField = new JTextField();

        textField.setBounds(73, 10, 116, 22);

        frmOhNoHe.getContentPane().add(textField);

        textField.setColumns(10);



        lblReason = new JLabel("Reason:");

        lblReason.setBounds(12, 42, 56, 16);

        frmOhNoHe.getContentPane().add(lblReason);



        lblProof = new JLabel("Proof:");

        lblProof.setBounds(12, 71, 56, 16);

        frmOhNoHe.getContentPane().add(lblProof);



        textField_1 = new JTextField();

        textField_1.setBounds(73, 39, 116, 22);

        frmOhNoHe.getContentPane().add(textField_1);

        textField_1.setColumns(10);



        textField_2 = new JTextField();

        textField_2.setBounds(73, 68, 116, 22);

        frmOhNoHe.getContentPane().add(textField_2);

        textField_2.setColumns(10);



        btnNewButton = new JButton("Submit");

        btnNewButton.setBounds(73, 103, 116, 20);

        btnNewButton.addActionListener(new ActionListener() {



            @Override

            public void actionPerformed(ActionEvent e) {

                if(textField.getText().trim().equals("")) {

                    JOptionPane.showMessageDialog(null, "A Username is required before submission!", "Missing Username    ", JOptionPane.ERROR_MESSAGE);

                }else {

                    if (textField_1.getText().trim().equals("")) {

                        JOptionPane.showMessageDialog(null, "A Reason is required before submission!", "Missing Reason    ", JOptionPane.ERROR_MESSAGE);

                    } else {

                        if(textField_2.getText().trim().equals("")) {

                        JOptionPane.showMessageDialog(null, "Proof is required before submission!", "Missing Proof    ", JOptionPane.ERROR_MESSAGE);

                        }else {

                        String user = textField.getText();

                        String reason = textField_1.getText();

                        String proof = textField_2.getText();



                        try(PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("Oh No " + user + " Didn't.txt", false)))) {

                        out.print("======Start======");

                        out.println("");

                        out.print("User:");

                        out.print(user);

                        out.println("");

                        out.print("Reason:");

                        out.print(reason);

                        out.println("");

                        out.print("Proof:");

                        out.print(proof);

                        out.println("");

                        out.print("======End======");

                        } catch (IOException e1) {

                        e1.printStackTrace();

                        }

                        }

                    }

                }



            }

        });

        frmOhNoHe.getContentPane().add(btnNewButton);

    }

}