onOptionsItemSelected方法下写一个返回功能，求大佬指点

Question

 @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()){
            case R.id.action_note_edit://编辑笔记
                Intent intent = new Intent(NoteActivity.this, EditActivity.class);
                Bundle bundle = new Bundle();
                bundle.putSerializable("note", note);
                intent.putExtra("data", bundle);
                intent.putExtra("flag", 1);//编辑笔记
                startActivity(intent);
                finish();
                break;
            case R.id.action_note_delete://删除笔记
                AlertDialog.Builder builder = new AlertDialog.Builder(NoteActivity.this);
                builder.setTitle("提示");
                builder.setMessage("确定删除笔记？");
                builder.setCancelable(false);
                builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        int ret = noteDao.DeleteNote(note.getId());
                        if (ret > 0){
                            Toast.makeText(NoteActivity.this,"删除成功", Toast.LENGTH_SHORT).show();
                            finish();
                        }
                    }
                });
                builder.setNegativeButton("取消", null);
                builder.create().show();
                break;
//            case R.id.action_note_mark:
            case R.id.action_note_back://返回上一界面

        接下来这个地方该怎么写

Answer 1

直接finish干掉当前界面不久返回上一个界面了吗。