I am a absolute Beginner & I want to make apps for iOS/Android. How should I get started ? Which course to complete ?

Answer 1

The easiest entry into App Programming might be
the App Inventor.
After 2 days my students are able to create lowlevel apps.
http://appinventor.mit.edu/explore/get-started.html

Answer 2

Java for Android development and Objective C for IOS and Mac, if I remember correctly.

You can also find that information on the internet.

Answer 3

in addition, you could search for library and learn her syntax, which allowing you to create the same app for Android and iOS.