MindCraft Software Java Developer interview questions

Applied directly to Mindcraft,got a call from their HR.Scheduled telephonic first,Did not a get a call as per scheduled timing,I informed the HR,they call at any random time. Telephonic Interview was scheduled next day,Asked all stupid question in Java,Like a method has number data type.I mean there are int,byte,float,double.What is number data type? Then they kept on asking questions giving scenarios whose knowledge I do not have,how many methods are there to create singleton class,I only knew of getInstance(). Asking to tell queries in SQL over phone.,was pathetic. After interview ,called HR 4 times and mailed as well for feedback.After a week she says you are rejected. Do they really remember what was asked and what was answered? Pathetic