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Threads vs Processes in Linux
I've recently heard a few people say that in Linux, it is almost always better to use processes instead of threads, since Linux is very efficient in handling processes, and because there are so many problems (such as locking) associated with threads. However, I am suspicious, because it seems like ...
How to combine two or more querysets in a Django view?
I am trying to build the search for a Django site I am building, and in that search, I am searching in 3 different models. And to get pagination on the search result list, I would like to use a generic object_list view to display the results. But to do that, I have to merge 3 querysets into one.
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Difference between 3NF and BCNF in simple terms (must be able to explain to an 8-year old)
...rella meat
2 sausage cheese
2 peppers vegetable
Wait a second, mozzarella can't be both a cheese and a meat! And sausage isn't a cheese!
We need to prevent these sorts of mistakes, to make mozzarella always be cheese. We should use a separate table for this, so we write d...
Handling an empty UITableView. Print a friendly message
I have a UITableView that in some cases it is legal to be empty. So instead of showing the
background image of the app, I would prefer to print a friendly message in the screen, such as:
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IntelliJ IDEA with Junit 4.7 “!!! JUnit version 3.8 or later expected:”
...problem happens because Android Platform (android.jar) already contains JUnit classes. IDEA test runner loads these classes and sees that they are from the old JUnit, while you are trying to use annotated tests which is a feature of the new JUnit, therefore you get the error from the test runner.
T...
Compile time string hashing
I have read in few different places that using C++11's new string literals it might be possible to compute a string's hash at compile time. However, no one seems to be ready to come out and say that it will be possible or how it would be done.
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Node.js Error: Cannot find module express
I wrote my first node.js app, but it can't find express library:
15 Answers
15
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Java 8 List into Map
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Based on Collectors documentation it's as simple as:
Map<String, Choice> result =
choices.stream().collect(Collectors.toMap(Choice::getName,
Function.identity()));
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Is That REST API Really RPC? Roy Fielding Seems to Think So
...pparently wrong - and I'm not alone. This question has a long lead-in, but it seems to be necessary because the information is a bit scattered. The actual question comes at the end if you're already familiar with this topic.
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How to use Java property files?
...guration values I want to store as Java property files, and later load and iterate through.
17 Answers
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