Java how to get data from radio group in android

To retrieve data from a radio group in an Android app using Java, you can use the getCheckedRadioButtonId() method of the RadioGroup object to get the ID of the currently checked radio button, and then use the findViewById() method of the View object to get a reference to the RadioButton object.

Here's an example of how you can retrieve the data from a radio group in an Android app using Java:

RadioGroup radioGroup = findViewById(R.id.radio_group);
int selectedId = radioGroup.getCheckedRadioButtonId();
RadioButton radioButton = findViewById(selectedId);
String selectedText = radioButton.getText().toString();

In this example, the radioGroup object represents the RadioGroup view in your layout, and the selectedId variable holds the ID of the currently checked radio button. The radioButton object represents the RadioButton view for the checked radio button, and the selectedText variable holds the text displayed on the radio button as a string.

You can then use the selectedText variable in your app as needed.