The 'Parcelable' interface is used in Android to pass data between activities efficiently. So, the correct answer is B.

Here are the steps to explain its usage:

1. Definition: Parcelable is an interface in Android that your objects can implement in order to be marshalled and unmarshalled by the Android system. Objects that implement Parcelable can be passed around between different parts of your app, or even different apps, using Intents.

2. Implementation: To make your object Parcelable, it needs to implement the Parcelable interface and the static Parcelable.Creator interface. The Parcelable interface defines a method `writeToParcel()` that takes a Parcel and gets called to write the object's data to the Parcel. The Parcelable.Creator interface defines methods to create your object from a Parcel.

3. Usage: Once your object is Parcelable, you can use an Intent to pass it to another Activity. You can put your Parcelable object into the Intent's extras Bundle using `putExtra()`. On the receiving end, you can get your object back out of the Bundle with `getParcelableExtra()`.

4. Efficiency: Parcelable is designed to be a high-performance IPC (Inter-Process Communication), and as such, it is much more efficient than using Java's native serialization.

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The 'Parcelable' interface is used in Android to pass data between activities efficiently. So, the correct answer is B.

Here are the steps to explain its usage:

1. Definition: Parcelable is an interface in Android that your objects can implement in order to be marshalled and unmarshalled by the Android system. Objects that implement Parcelable can be passed around between different parts of your app, or even different apps, using Intents.

2. Implementation: To make your object Parcelable, it needs to implement the Parcelable interface and the static Parcelable.Creator interface. The Parcelable interface defines a method `writeToParcel()` that takes a Parcel and gets called to write the object's data to the Parcel. The Parcelable.Creator interface defines methods to create your object from a Parcel.

3. Usage: Once your object is Parcelable, you can use an Intent to pass it to another Activity. You can put your Parcelable object into the Intent's extras Bundle using `putExtra()`. On the receiving end, you can get your object back out of the Bundle with `getParcelableExtra()`.

4. Efficiency: Parcelable is designed to be a high-performance IPC (Inter-Process Communication), and as such, it is much more efficient than using Java's native serialization.

Knowee AI · Accepted Answer

The 'Parcelable' interface is used in Android to pass data between activities efficiently. So, the correct answer is B.

Here are the steps to explain its usage:

1. Definition: Parcelable is an interface in Android that your objects can implement in order to be marshalled and unmarshalled by the Android system. Objects that implement Parcelable can be passed around between different parts of your app, or even different apps, using Intents.

2. Implementation: To make your object Parcelable, it needs to implement the Parcelable interface and the static Parcelable.Creator interface. The Parcelable interface defines a method `writeToParcel()` that takes a Parcel and gets called to write the object's data to the Parcel. The Parcelable.Creator interface defines methods to create your object from a Parcel.

3. Usage: Once your object is Parcelable, you can use an Intent to pass it to another Activity. You can put your Parcelable object into the Intent's extras Bundle using `putExtra()`. On the receiving end, you can get your object back out of the Bundle with `getParcelableExtra()`.

4. Efficiency: Parcelable is designed to be a high-performance IPC (Inter-Process Communication), and as such, it is much more efficient than using Java's native serialization.

What is the 'Parcelable' interface used for in Android?ATo store data in a local databaseBTo pass data between activities efficientlyCTo implement custom viewsDTo manage the app's navig

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