如何导入以下内容？我试过这种方式，但没有发生任何事情。请帮帮忙？
import com.android.internal.telephony.cat.AppInterface;
import com.android.internal.telephony.cat.LaunchBrowserMode;
import com.android.internal.telephony.cat.Menu;
import com.android.internal.telephony.cat.Item;
import com.android.internal.telephony.cat.Input;
import com.android.internal.telephony.cat.ResultCode;
import com.android.internal.telephony.cat.CatCmdMessage;
import com.android.internal.telephony.cat.CatCmdMessage.BrowserSettings;
import com.android.internal.telephony.cat.CatCmdMessage.SetupEventListSettings;
import com.android.internal.telephony.cat.Log;
import com.android.internal.telephony.cat.CatResponseMessage;
import com.android.internal.telephony.cat.TextMessage;
import com.android.internal.telephony.uicc.IccRefreshResponse;
import com.android.internal.telephony.uicc.IccCardStatus.CardState;
import com.android.internal.telephony.PhoneConstants;
import com.android.internal.telephony.TelephonyIntents;
import com.android.internal.telephony.IccCardConstantsa;
import com.android.internal.telephony.uicc.UiccController;
import com.android.internal.telephony.GsmAlphabet;
import com.android.internal.telephony.cat.CatService;