Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Android

Akhter Rasool
Akhter Rasool
8,597 Points

Android basic development

1)What is difference between a field and a variable ?

2) What is refactoring 3) Why do we need to cast like button b = new (button) findViewById(R.id.id); 4) if an array containing elements is declared as private in a class , can i send(not being accessed) at least one element of that array to other class ? And why ?