How to get the SHA1 fingerprint certificate in android studio for debug mode?

First open cmd  then  get  bin  location  like bellow
C:\Program Files\Java\jdk1.8.0\bin>

then type 

keytool -list -v -keystore C:\Users\yourPC_username\.android\debug.keystore -alias androiddebugkey -storepass android -keypass android

example = keytool -list -v -keystore C:\Users\A\.android\debug.keystore -alias androiddebugkey -storepass android -keypass android

press enter 

get your result.