get key of hash code example

Example 1: java get keys from hashmap

//returns as set
hashmap.keySet()

Example 2: keystore get key hashes

$ keytool -exportcert -alias androiddebugkey -keystore "C:\Documents and Settings\Administrator.android\debug.keystore" | "C:\OpenSSL\bin\openssl" sha1 -binary |"C:\OpenSSL\bin\openssl" base64