Mick Mnemonic questions

Mick Mnemonic answers

• Java array with around 20000 values declaration
• Datatypes in Java and their representation
• What kind of optimalization JIT applied to while loop
• Getting an instance of a third-party class inheriting one of yours
• Best way to return null from a method?
• Unicode Character uncompatibility?
• Mockito cannot mock this class : Mockito can only mock non-private & non-final classes
• SonarQube issue with public static variables | JAVA
• CREATE DATABASE query using java jdbc and prepared statement returns syntax error
• Can I make an ArrayList in an ArrayList (java)?