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What is a bus error?
What does the "bus error" message mean, and how does it differ from a segfault?
15 Answers
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Java 256-bit AES Password-Based Encryption
... AES encryption, but all the examples I have found online use a "KeyGenerator" to generate a 256 bit key, but I would like to use my own passkey. How can I create my own key? I have tried padding it out to 256 bits, but then I get an error saying that the key is too long. I do have the unlimited jur...
Should we @Override an interface's method implementation?
...'t properly override public boolean equals(Object obj).
The same will go for methods that implement an interface (1.6 and above only) or override a Super class's method.
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Node.js Error: Cannot find module express
...ur application (node_modules folder):
$ npm install express
The reason for this is that applications always look in their local context for any dependencies. The global installation is only for setting up system-wide available binaries, such as unit test runners or bootstrappers or things like th...
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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Proper indentation for Python multiline strings
What is the proper indentation for Python multiline strings within a function?
14 Answers
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Java: convert List to a String
...nother type than String you can use the Stream API with the joining Collector:
List<Person> list = Arrays.asList(
new Person("John", "Smith"),
new Person("Anna", "Martinez"),
new Person("Paul", "Watson ")
);
String joinedFirstNames = list.stream()
.map(Person::getFirstName)
.collec...
HTTP status code 0 - Error Domain=NSURLErrorDomain?
I am working on an iOS project.
12 Answers
12
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Using Django time/date widgets in custom form
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That said, here's what you have to do if you're determined to make this work:
Define your own ModelForm subclass for your model (best to put it in forms.py in your app), and tell it to use the AdminDateWidget / AdminTimeWidget / AdminSplitDateTime (replace 'mydate' etc with the proper field name...
How can I show line numbers in Eclipse?
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Window → Preferences → General → Editors → Text Editors → Show line numbers.
Edit: I wrote this long ago but as @ArtOfWarfar and @voidstate mentioned you can now simply:
Right click the gutter and select "Show Line Numbers":
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