save value with on click in shared prefrences

Question

i have 9 item list and i want when user click on each item save value in shared SharedPreferences and in second activity put if value save in SharedPreferences equal for example a how can i do this work please help me

 @Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {      



mSharedPreferences = getApplicationContext().getSharedPreferences("edameh", 0);

    SharedPreferences.Editor edit = mSharedPreferences.edit();



    if (i == 0) {
        Intent intent0 = new Intent(getApplicationContext(),Study.class);
        startActivity(intent0);
 edit.putString("a", ed);
        edit.commit();


    }
    if (i == 1) {
        Intent intent1 = new Intent(getApplicationContext(),Mogh.class);
        startActivity(intent1);

 edit.putString("b", ed);
        edit.commit();
    }

in second activity for check value shared prefrences

 if (fistActivity.ed=="a"){


    }