Conscious questions

• How can I get the description of ResponseCode of HttpURLConnection?
• Is fingerprint supported in Android devices?
• Does Java have a data structure that stores key value pairs, equivalent to IDictionary in C#? [duplicate]
• Is it possible to localize CalendarView or DatePicker?
• Are there binary literals in Java?
• Is there any library or algorithm for Persian (Shamsi or Jalali) calendar in Android? [closed]

Conscious answers