java 8 interview questions and answers

The following folders are declared as impotent in android: AndroidManifest.xml build.xml bin/ src/ res/ assets/ In Android, there are several important folders that serve specific purposes. Here’s a list of some important folders in an Android file system: /system: Contains the core operating system files and libraries. /data: Holds user data, app data, and other … Read more

An android toast provides feedback to the users about the operation being performed by them. It displays the message regarding the status of operation initiated by the user. In Android development, a “toast” refers to a short-lived message that appears on the screen, typically near the bottom, to provide users with brief information or feedback … Read more

View elements can be identified using the keyword findViewById. In Android programming, view elements are identified using unique identifiers called “IDs.” These IDs are assigned to UI elements within the XML layout file, and you can reference them in your Java/Kotlin code. Here are common ways to identify and work with view elements: XML Attributes: … Read more

It is a kind of message or information that is passed to the components. It is used to launch an activity, display a web page, send SMS, send email, etc. There are two types of intents in android: Implicit Intent Explicit Intent In the context of Android development, an Intent is a messaging object that … Read more

There are 7 life-cycle methods of activity. They are as follows: onCreate() onStart() onResume() onPause() onStop() onRestart() onDestroy() In Android, the lifecycle of an activity is managed by a set of callback methods. The key lifecycle methods of an Android activity are as follows: onCreate(): Called when the activity is first created. This is where … Read more