为了做选项卡的界面就继承了TabActivity，那TabActivity中的按钮监听怎样向Activity跳转啊？谢谢了

button2.setOnClickListener(new OnClickListener() {
              
            public void onClick(View v) {
             // TODO Auto-generated method stub
                finish();
                Intent intent=new Intent(TabActivity.this/*所在界面*/,Activity.class/*跳转界面*/);
                startActivity(intent);

             }
        });