String namaDepan = namaDepanEditText.getText().toString();
                String namaBelakang = namaBelakangEditText.getText().toString();
                String noHp = noHpEditText.getText().toString();
                int checkedGenderId = genderRadioGroup.getCheckedRadioButtonId();
                String jenjang = jenjangSpinner.getSelectedItem().toString();

                String gender = "";

                if(checkedGenderId == R.id.rb_pria) {
                    gender = "Pria";
                }
                else if(checkedGenderId == R.id.rb_wanita) {
                    gender = "Wanita";
                }

                String hobi = "";

                if(membacaCheckbox.isChecked()) {
                    hobi += "Membaca,";
                }

                if(menulisCheckbox.isChecked()) {
                    hobi += "Menulis,";
                }

                if(menggambarCheckbox.isChecked()) {
                    hobi += "Menggambar";
                }

                // munculkan toast
                Toast.makeText(FormActivity.this,
                        "Hello " + namaDepan + " " + namaBelakang + "\n" +
                        "No HP: " + noHp + "\n" +
                        "Gender: " + gender + "\n" +
                        "Jenjang: " + jenjang + "\n" +
                        "Hobi: " + hobi,
                        Toast.LENGTH_SHORT).show();