Use a switch statement using the position of the clicked item to choose which Activity to start.
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent;
switch(position) {
case 0:
intent = new Intent(getBaseContext(), NeSalla.class);
break;
case 1:
intent = new Intent(getBaseContext(), ...);
break;
...
}
startActivity(intent);
}
});