Java is a language which is used at a major scale for the development of mobile applications. Some of the other languages are there which can be used to develop the Android application like C and C++ using Native Development Kit (NDK), but Java is recommended to develop the applications. In available IDE i.e. Android Studio, Java is default language to code whereas C and C++ are in options. It supports native code also, so C and C++ are applicable to code for the mobile application. An SDK (Software Development Kit) is used for Android development which has a bunch of libraries instead of JVM. Before going for learning Android Development courses one should attain complete understanding on Java as it has a significant role in Android App development.