public class AddPlayer extends javax.swing.JFrame {
StringBuffer display = new StringBuffer("");

    /**
     * Creates new form AddPlayer
     */
    public AddPlayer() {
        initComponents();

         this.setIconImage(Toolkit.getDefaultToolkit().
                getImage("src/CardImage/Joker_B.png"));
         this.setLocationRelativeTo(null);
          this.getRootPane().setDefaultButton(addJButton);

    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        addJButton = new javax.swing.JButton();
        newplayerJTextField = new javax.swing.JTextField();
        jLabel1 = new javax.swing.JLabel();
        closeJButton = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        addJButton.setText("Add Player");
        addJButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                addJButtonActionPerformed(evt);
            }
        });

        jLabel1.setFont(new java.awt.Font("Tahoma", 0, 18)); // NOI18N
        jLabel1.setText("Enter Name of New Player");

        closeJButton.setText("Close");
        closeJButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                closeJButtonActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(58, 58, 58)
                        .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 217, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(20, 20, 20)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addComponent(closeJButton)
                            .addComponent(newplayerJTextField, javax.swing.GroupLayout.PREFERRED_SIZE, 164, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(31, 31, 31)
                        .addComponent(addJButton)))
                .addContainerGap(19, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 26, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(newplayerJTextField, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(addJButton))
                .addGap(18, 18, 18)
                .addComponent(closeJButton)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>

    private void closeJButtonActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:

        dispose();
    }

    private void addJButtonActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
        //Variables:
        String FILEDIRECTORY = ("src//Players.txt");
    try{
        File file =new File(FILEDIRECTORY);
        FileWriter writer = new FileWriter(file,true);
        BufferedWriter buffered = new BufferedWriter(writer);
        try (PrintWriter pw = new PrintWriter(buffered))
        {

             pw.println(newplayerJTextField.getText());

        }
    }catch(IOException ioe){
//this is in a different form then the cardGame