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I am confused on what's the difference between them, and which one to choose in which case. Some difference might be obvious, like any and eq , but I'm including them all just to be sure. I wonder about their differences because I came across this problem: I have this POST method in a Controller class public Response doSomething(@ResponseBody Request request) { return someService.doSomething(request); } And would like to perform a unit test on that controller. I have two versions. The first one is the simple one, like this @Test public void testDoSomething() { //initialize ObjectMapper mapper

This question already has an answer here: What is tail recursion? 27 answers I'm trying to get the difference between these 2 recursive strategies. The definition I was told is the following: Tail Recursion: A call is tail-recursive if nothing has to be done after the call returns i.e. when the call returns, the returned value is immediately returned from the calling function Head Recursion: A call is head-recursive when the first statement of the function is the recursive call. Java Curious ღ In head recursion , the recursive call, when it happens, comes before other processing in the

I want to execute something in a shell/terminal on Windows via AutoIt. And I know that there are two ways of doing it. For example: Run(@ComSpec & " /c " & $myCommand, "", @SW_HIDE) ;and ShellExecute($myCommand) I don't understand the difference; both functions will do what I want, but what's behind them? Which pros and cons do they have? Bookeater Run() is used to fire off executable files only. It requires the full path of the program. ShellExecute() also accepts content files like .txt, .htm and .docx and will start the executable associated with it. The verb option can be used to control

This is kind of naive question but I am new to NoSQL paradigm and don't know much about it. So if somebody can help me clearly understand difference between the HBase and Hadoop or if give some pointers which might help me understand the difference. Till now, I did some research and acc. to my understanding Hadoop provides framework to work with raw chunk of data(files) in HDFS and HBase is database engine above Hadoop, which basically works with structured data instead of raw data chunk. Hbase provides a logical layer over HDFS just as SQL does. Is it correct? Pls feel free to correct me.

This question already has an answer here: Use 'import module' or 'from module import'? 15 answers In Python, I'm not really clear on the difference between the following two lines of code: import X or from X import * Don't they both just import everything from the module X? What's the difference? BrenBarn After import x , you can refer to things in x like x.something . After from x import * , you can refer to things in x directly just as something . Because the second form imports the names directly into the local namespace, it creates the potential for conflicts if you import things from many