holder.box.setOnClickListener(new View.OnClickListener() {
  @Override
    public void onClick(View view) {
        boolean newState = !arrEmps.get(position).isChecked();
        arrEmps.get(position).isChecked() = newState;
        Toast.makeText(mContext.getApplicationContext(),
                arrEmps.get(position).getName() + "check" + newState,
        Toast.LENGTH_LONG).show();
    }
});

arrEmps.get(position).isChecked() = newState;

Error:(86, 48) error: unexpected type
required: variable
found:    value

boolean newState = !arrEmps.get(position).isChecked();
arrEmps.get(position).isChecked() = newState;

arrEmps.get(position).setChecked(!arrEmps.get(position).isChecked())