To initialize the Amplify Predictions and Authentication categories you call `Amplify.addPlugin()` method for each category. To complete initialization call `Amplify.configure()`. Add the following code to your `onCreate()` method in your application class: <BlockSwitcher> <Block name="Java"> ```java import android.util.Log; import com.amplifyframework.AmplifyException; import com.amplifyframework.auth.cognito.AWSCognitoAuthPlugin; import com.amplifyframework.core.Amplify; import com.amplifyframework.predictions.aws.AWSPredictionsPlugin; ``` ```java Amplify.addPlugin(new AWSCognitoAuthPlugin()); Amplify.addPlugin(new AWSPredictionsPlugin()); ``` Your class will look like this: ```java public class MyAmplifyApp extends Application { @Override public void onCreate() { super.onCreate(); try { // Add these lines to add the AWSCognitoAuthPlugin and AWSPredictionsPlugin plugins Amplify.addPlugin(new AWSCognitoAuthPlugin()); Amplify.addPlugin(new AWSPredictionsPlugin()); Amplify.configure(getApplicationContext()); Log.i("MyAmplifyApp", "Initialized Amplify"); } catch (AmplifyException error) { Log.e("MyAmplifyApp", "Could not initialize Amplify", error); } } } ``` </Block> <Block name="Kotlin"> ```kotlin import android.util.Log import com.amplifyframework.AmplifyException import com.amplifyframework.auth.cognito.AWSCognitoAuthPlugin import com.amplifyframework.core.Amplify import com.amplifyframework.predictions.aws.AWSPredictionsPlugin ``` ```kotlin Amplify.addPlugin(AWSCognitoAuthPlugin()) Amplify.addPlugin(AWSPredictionsPlugin()) ``` Your class will look like this: ```kotlin class MyAmplifyApp : Application() { override fun onCreate() { super.onCreate() try { // Add these lines to add the AWSCognitoAuthPlugin and AWSPredictionsPlugin plugins Amplify.addPlugin(AWSCognitoAuthPlugin()) Amplify.addPlugin(AWSPredictionsPlugin()) Amplify.configure(applicationContext) Log.i("MyAmplifyApp", "Initialized Amplify") } catch (error: AmplifyException) { Log.e("MyAmplifyApp", "Could not initialize Amplify", error) } } } ``` </Block> <Block name="RxJava"> ```java import android.util.Log; import com.amplifyframework.AmplifyException; import com.amplifyframework.auth.cognito.AWSCognitoAuthPlugin; import com.amplifyframework.predictions.aws.AWSPredictionsPlugin; import com.amplifyframework.rx.RxAmplify; ``` ```java RxAmplify.addPlugin(new AWSCognitoAuthPlugin()); RxAmplify.addPlugin(new AWSPredictionsPlugin()); ``` Your class will look like this: ```java public class MyAmplifyApp extends Application { @Override public void onCreate() { super.onCreate(); try { // Add these lines to add the AWSCognitoAuthPlugin and AWSPredictionsPlugin plugins RxAmplify.addPlugin(new AWSCognitoAuthPlugin()); RxAmplify.addPlugin(new AWSPredictionsPlugin()); RxAmplify.configure(getApplicationContext()); Log.i("MyAmplifyApp", "Initialized Amplify"); } catch (AmplifyException error) { Log.e("MyAmplifyApp", "Could not initialize Amplify", error); } } } ``` </Block> </BlockSwitcher> Note that because the predictions category requires auth, you will need to either configure [guest access](/lib/auth/guest_access) or [sign in a user](/lib/auth/signin) before using features in the predictions category.