Is it necessary to use java for Android app making?

Question

I heard at many places that you have to learn Java to make Android app but I use ruby language. can I use ruby to make Android app or I need to learn Java and why?

Answer 1

what's jruby

Answer 2

where can I learn it?

Answer 3

thank you very much

Answer 4

Check JRuby

Answer 5

it's Ruby's version which is designed to run on JVM

Answer 6

type in "JRuby: An Introduction" in google and check www.techrepublic.com article about it for a start

Answer 7

you can use Ruby, Python, C++, and more but using Java is best for productivity and performance.

Answer 8

You also got frameworks that dont use java lile phonegap or xamarin
if you need a very simple app, you could use mit app inventor 2

Answer 9

You can use anything that runs on the JVM for Android.