Christian Semrau questions

Christian Semrau answers

• Getting OptionalDataException because of primitive int value , but how to avoid it in JAVA
• Java Generics - explanation needed
• How do repeated disjuncts with back-references work?
• Unable to create an object of class which implements Runnable interface
• During Spring unit test, data written to db but test not seeing the data
• Java ConcurrentHashMap atomic get if present
• Ensure method A is called after every call of B (an abstract implemented method)?
• Constructors in Programming languages
• Understanding logic in CaseInsensitiveComparator
• Finding the closest integer fraction to a given random real between 0..1, given ranges of numerator and denominator