private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
        String username, password, nama, agama, pekerjaan, alamat;
        int umur;
        boolean isFailed = true;

        isFailed = (!this.confirmPasswordTextField.getText().equals("") && (!this.passwordTextField.getText().equals(this.confirmPasswordTextField.getText()))) ||
                (this.usernameTextField.getText().equals("")) ||
                (this.namaTextField.getText().equals("")) ||
                (this.umurTextField.getText().equals("")) ||
                (this.agamaTextField.getText().equals("")) ||
                (this.pekerjaanTextField.getText().equals("")) ||
                (this.alamatTextField.getText().equals("")) ||
                (this.passwordTextField.getText().equals(""));
        if(!this.confirmPasswordTextField.getText().equals("") && (!this.passwordTextField.getText().equals(this.confirmPasswordTextField.getText())))
            confirmAlertLabel.setVisible(true);
        else
            this.confirmAlertLabel.setVisible(false);
        if(this.usernameTextField.getText().equals(""))
            this.usernameAlertLabel.setVisible(true);
        else
            this.usernameAlertLabel.setVisible(false);
        if(this.namaTextField.getText().equals(""))
            this.namaAlertLabel.setVisible(true);
        else
            this.namaAlertLabel.setVisible(false);
        if(this.umurTextField.getText().equals(""))
            this.umurAlertLabel.setVisible(true);
        else
            this.umurAlertLabel.setVisible(false);
        if(this.agamaTextField.getText().equals(""))
            this.agamaAlertLabel.setVisible(true);
        else
            this.agamaAlertLabel.setVisible(false);
        if(this.pekerjaanTextField.getText().equals(""))
            this.pekerjaanAlertLabel.setVisible(true);
        else
            this.pekerjaanAlertLabel.setVisible(false);
        if(this.alamatTextField.getText().equals(""))
            this.alamatAlertLabel.setVisible(true);
        else
            this.alamatAlertLabel.setVisible(false);
        if(this.passwordTextField.getText().equals(""))
            this.passwordAlertLabel.setVisible(true);
        else
            this.passwordAlertLabel.setVisible(false);
        if(this.confirmPasswordTextField.getText().equals(""))
            this.confirmSandiLabel.setVisible(true);
        else
            this.confirmSandiLabel.setVisible(false);
        if(!isFailed) {
            username = this.usernameTextField.getText();
            password = this.passwordTextField.getText();
            nama = this.namaTextField.getText();
            agama = this.agamaTextField.getText();
            pekerjaan = this.pekerjaanTextField.getText();
            alamat = this.alamatTextField.getText();
            umur = Integer.parseInt(this.umurTextField.getText());
            try {
                Statement s = c.createStatement();
                this.sql = "INSERT INTO pengguna (password, username, nama, umur, agama, pekerjaan, alamat) "
                        + "VALUES ('"+ password +"', '"+ username +"', '"+ nama +"', '"+ umur +"', '"+ agama +"', '"+ pekerjaan +"', '"+ alamat +"')";
                s.executeUpdate(sql);
            } catch(SQLException e) {
             System.out.println("Error pada method setInsert()");
    }
            JOptionPane.showMessageDialog(null, "Anda berhasil mendaftar. Silahkan login kembali");
            Login login = new Login();
            login.setLocation(this.getLocation());
            login.setVisible(true);
            dispose();
    }
        else
            JOptionPane.showMessageDialog(null, "Ada kolom yang belum Anda isi. Silahkan cek kembali");
    }