Andreas questions

Andreas answers

• Dao complex logic sql
• Java BigDecimal divide and multiply and round to 2 decimals
• How to synchronize between executors of an ExecutorService
• ArrayList 'squash' operation on its elements
• DateTimeFormatter cannot be applied to (java.util.Date)
• What does diamond operator do when we need one more parameter in generic class?
• Java Stream lifecycle callbacks
• Why is the word "join" is used for the Thread.join() method?
• Java 8 streams : Combine properties of two objects which are in ArrayLists into an ArrayList of a third object type
• How to convert String (hh:mm) to date with current date [duplicate]