How to auto import the necessary classes in Android Studio with shortcut?

Question

I\'ve just switch to Android Studio 0.5.1, and the things going so slow here, because nothing works in the regular way...

How do I import the necessary classes with

Answer 1

File -> Settings -> Keymap Change keymaps settings to your previous IDE to which you are familiar with

Answer 2

Go to File -> Settings -> Editor -> Auto Import -> Java and make the below things:

Select Insert imports on paste value to All

Do tick mark on Add unambigious imports on the fly option and "Optimize imports on the fly*