How we built some android apps with java programing?

Answer 1

you must have android studio or eclopse with android plugin.
for more info try on google

Answer 2

The official language for Android development is Java. Large parts of Android are written in Java and its APIs are designed to be called primarily from Java. That said, it is possible to develop C and C++ apps using the Android Native Development Kit (NDK), however it isn't something that Google promotes.

Answer 3

Android Studio – http://developer.android.com/sdk/installing/studio.html (in beta) Both of these IDEs require the use of the Javacomputer language to write Apps. The first option uses the well established Eclipse IDE. The second option is based upon the IntelliJ IDE