loading android studio

1import android.os.Handler;
2Runnable runnable = new Runnable() {
3            @Override
4            public void run() {
5                Intent intent = new Intent(getApplicationContext(), inscription.class);
6                startActivity(intent);
7                finish();
8            }
9        };
10        //....
11        new Handler().postDelayed(runnable,3000);
12    }