I know that using an uninitialized variable is wrong, but the question arises in the context of an uninitialized integer, that I do not use before I assign it a value later on in the code.
New to Python here.I am looking for a simple way of creating a list (Output), which returns the count of the elements of another objective list (MyList) while preserving the indexing(?).
I have a mind-block when trying to create data-structure that follows the pattern:Map<String, T> is a main building block and T is either Map<String, T> or as terminal operator List<String>. Is it possible to build anything similar in Java, this idea comes from functional languages like F# or Haskell-like.
Is there an elegant way to convert a Map<P, Optional<Q>> to a sparse Map<P, Q> ?This should work, but it's a bit meh:
I'm working on an application that uses LevelDB and that uses multiple long-lived processes for different tasks.
I am trying to write a template to calculate the power of a number during compile time(i am not a template meta-programming expert so any comment is appreciated). Below the code:
I am new to Java, kinda transition from C# to Java. java.util.function has a interface defined as Function which is input to computeIfAbsent method of Map.
Can anyone explain to me what I'm doing wrong here?All that I'm trying to do is to use the idea of polymorphism for operators, in special the operator++. I want to have a result something like this:
I try to find the "group" (id3) based on two variables (id1, id2):For example id1=1 is related to a and b of id2. But id1=2 is also related to a so both belong to one group (id3=group1). But since id1=2 and id1=3 share id2=c, also id1=3 belongs to that group...