Android
How to use RadioGroup and RadioButton in Android.
The RadioButton has two states: either checked or unchecked.
Once a RadioButton is checked, it cannot be unchecked. A RadioGroup is used to group together one or more RadioButton views, thereby allowing only one RadioButton to be checked within the RadioGroup.
How to use Checkbox in Android?
CheckBox is a type of two state button either unchecked or checked.
Checkboxes allow the user to select one or more options from a set. In android each checkbox is managed separately and you must register a click listener for each one. A special type of button that has two states: checked or unchecked. In android, there is a lot of usage of check box.
How to use TextView in android.
The TextView view is used to display text to the user and optionally allows them to edit it. This is the most basic view and one that you will frequently use when you develop Android applications. If you need to allow users to edit the text displayed, you should use the subclass of TextView, EditText.
How to use Spinner in android.
Android spinner is like the drop down menu with multiple values. It is use to display the multiple options to the user in which user can select only one item.
How to use Webview without showing Url in android.
WebView is a view that display web page in android. WebView makes turns your application to a web application. It is used to display online content in android activity.
How to use Webview in android
create and use Webview in android using Android Studio.
Add two number in Android
Lets open the Android Studio and select the “Start a new Android Studio project”
How to open eclipse and create a project.
How to run eclipse. Eclipse is a Java-based open source platform that allows a software developer to create a customized development environment(IDE). Eclipse provides a common user interface (UI) model for working with tools.