// TODO 4 IN DAY 4 -> Set Edit and Delete
    override fun onContextItemSelected(item: MenuItem?): Boolean {
        val menuInfo = item?.menuInfo as AdapterView.AdapterContextMenuInfo
        val position = menuInfo.position
        val siswa = adapter.getItem(position)

        // TODO When Delete, delete siswa --> Create method hapus(siswa)
        if (item.itemId==R.id.contextDelete){
            hapus(siswa)
        }

        //TODO 9 IN DAY 4
        // TODO When Edit, edit siswa --> Create method updateSiswa(siswa)
        if (item.itemId==R.id.contextUpdate){
            updateSiswa(siswa)
        }

        return super.onContextItemSelected(item)
    }