Roam questions

• hashCode() value changes between executions
• targetNamespace and xmlns
• Memory complexity of Quicksort
• Why is value of a value class as its hashCode "not a good idea"?
• What state is a sleeping thread in?
• Java 8 -- interfaces with default methods vs abstract classes
• Arrays.sort() -- two different strategies for primitive & complex data types to be sorted
• Immutablity in Java
• Java -- private constructor vs final and more
• How to detect the front-end actions at the back-end?

Roam answers