Frank questions

Frank answers

• Is an interface part of the Object hierarchy?
• Android: run application in dev/prod environment?
• Initializing public static final variables in constructor
• Removing Log call using proguard
• Sum of all digits for a given Positive Number [closed]
• Android, Does Log reduces application speed?
• AES-256 encryption & Apple iTunes export restrictions
• How to create Currency instance with non ISO 3166 country like en_UK?
• Classes / methods - removed / changed in SDK
• Why does the Java implementation of Random.setSeed xor the parameter with 0x5DEECE66DL?