How to select multiple Checkbox and create an Array with the values in android

I have added 9 CheckBox in my Fragment which is getting checked according to the response from JSON. If user wants to update his/her profile, He/she can check/uncheck any of them. Now I have to confirm that how many of them are checked and create an Array as a parameter according to that. I am not using any adapter for that. please let know how to set the condition to get the value of only checked checkboxes

I am trying to do like this

cb_prfl_setng_general=(CheckBox)rootView.findViewById(R.id.cb_prfl_setng_general);
    cb_prfl_setng_economics = (CheckBox)rootView.findViewById(R.id.cb_prfl_setng_economics);
    cb_prfl_setng_business=(CheckBox)rootView.findViewById(R.id.cb_prfl_setng_business);
    cb_prfl_setng_social=(CheckBox)rootView.findViewById(R.id.cb_prfl_setng_social);
    cb_prfl_setng_politics=(CheckBox)rootView.findViewById(R.id.cb_prfl_setng_politics);
    cb_prfl_setng_entertainmnt=(CheckBox)rootView.findViewById(R.id.cb_prfl_setng_entertainmnt);
    cb_prfl_setng_technology=(CheckBox)rootView.findViewById(R.id.cb_prfl_setng_technology);
    cb_prfl_setng_spritual=(CheckBox)rootView.findViewById(R.id.cb_prfl_setng_spritual);
    cb_prfl_setng_sports=(CheckBox)rootView.findViewById(R.id.cb_prfl_setng_sports);



     if(cb_prfl_setng_general.isChecked()){

                String[] Interest = {"catagory_id=1"};

            }else if(cb_prfl_setng_economics.isChecked()){

                String[] Interest = {"catagory_id=1","catagory_id=2"};

            }else if(cb_prfl_setng_general.isChecked()){

                String[] Interest = {"catagory_id=1","catagory_id=2","catagory_id=3"};

            }else if(cb_prfl_setng_entertainmnt.isChecked()){

                String[] Interest = {"catagory_id=1","catagory_id=2","catagory_id=3","catagory_id=4"};
            }

But I don't think this is the right way to get the exact value.