... mask an exception we might really care about. The finally tries to close from the outside of any decorated stream first, so if you had a BufferedWriter wrapping a FileWriter, we try to close the BuffereredWriter first, and if that fails, still try to close the FileWriter itself. (Note that the def...

...n UTF-8 collation ("a" comes before "b"). You can also output complex keys from your map/reduce as JSON arrays: ["a", "b", "c"]. Doing that would allow you to include a "tree" of sorts built out of array keys. Using your example above, we can output the post_id, then the type of thing we're referenc...

... I'd recommend pygmentize from the python package python-pygments. You may want to define the following handy alias (unless you use ccat from the ccrypt package). alias ccat='pygmentize -g' And if you want line numbers: alias ccat='pygmentize -g...

... The latter prevents you from modifying the_string inside print_string. It would actually be appropriate here, but perhaps the verbosity put off the developer. char* the_string : I can change which char the_string points to, and I can modify the char...

I am totally new to Spring and started to do the official guides from this site: https://spring.io/guides 27 Answers ...

...ew DataInputStream(System.in); int i = dis.readInt(); The readLine method from the DataInputStream class has been deprecated. To get String value, you should use the previous solution with BufferedReader Console class import java.io.Console; //... Console console = System.console(); String s = con...

... @kot "It happens to work for me" is very far from "this is a correct answer". It can work if sh is a symlink to bash, or if the script does not use any Bash-specific construct. In the former case, using bash instead of sh is the only correct, portable solution; in the l...

...me data) or something that happens at run time (e.g., an actual conversion from double to long). C++ attempts to deal with that to at least some extent by adding a number of "new" cast operators, each of which is restricted to only a subset of the capabilities of a C cast. This makes it more diffic...

...bstract". The purpose of this is to provide a kind of template to inherit from and to force the inheriting class to implement the abstract methods. An abstract class thus is something between a regular class and a pure interface. Also interfaces are a special case of abstract classes where ALL met...

... Here's an updated (for 2019) version of the accepted answer from @rozky (a lot has been changed in both the Mongo and Embedded MongoDB libraries). package com.example.mongo; import com.mongodb.BasicDBObject; import com.mongodb.MongoClient; import com.mongodb.client.MongoCollection; ...