Default Hash key of Android apk

I found the solution from this,
every IDE will have the default keystore password.

Like the case when I build my apk (android app package),
it will generated with the default hash key.

Generating an APK in the Debug Mode

• Keystore name: debug.keystore
• Keystore password: android
• Key alias: androiddebugkey
• Key password: android
• CN (common name): CN=Android Debug,O=Android,C=US

In order to get the hash key with the keytool command, 

you need the "Key alias" and "Key password" values.

keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64

(command for mac)