Check Checkboxes Programatically using position in Listview

I have a list view which contains 10 check boxes .I want that if user open app and check the first checkbox and i have a button "Next" if user pressed next then the next checkbox checked. I am using Adapter Class and View Holder class also.

  checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    CheckBox cb = (CheckBox) buttonView;

                    Planet planet = (Planet) cb.getTag();
                    planet.setChecked(cb.isChecked());
                    boolean isStart;

                    if (checkBox.isChecked()) {


                        if (selected != null) {
                            selected.setChecked(false);
                        }

                        checkBox.setChecked(true);
                        selected = checkBox;




                        });
                    } else {
                        Toast.makeText(getContext(), "hEY iTS eLSE", Toast.LENGTH_LONG).show();

                    }

                    notifyDataSetChanged();
                }});


next.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(getContext(), "Next", Toast.LENGTH_LONG).show();

            checkBox.setChecked(True)

                    }
                }
            });