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Large Numbers in Java
How would I go about doing calculations with extremely large numbers in Java?
6 Answers
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Easiest way to check for an index or a key in an array?
...ay[key]+abc} ] && echo "exists"
Basically what ${array[key]+abc} does is
if array[key] is set, return abc
if array[key] is not set, return nothing
References:
See Parameter Expansion in Bash manual and the little note
if the colon is omitted, the operator tests only for existen...
AngularJS: how to implement a simple file upload with multipart form?
I want to do a simple multipart form post from AngularJS to a node.js server,
the form should contain a JSON object in one part and an image in the other part,
(I'm currently posting only the JSON object with $resource)
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Given a URL to a text file, what is the simplest way to read the contents of the text file?
...st like a file
for line in data: # files are iterable
print line
You don't even need "readlines", as Will suggested. You could even shorten it to: *
import urllib2
for line in urllib2.urlopen(target_url):
print line
But remember in Python, readability matters.
However, this is the si...
How can I “pretty print” a Duration in Java?
Does anyone know of a Java library that can pretty print a number in milliseconds in the same way that C# does?
11 Answers
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Switch statement multiple cases in JavaScript
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See: developer.mozilla.org/en-US/docs/JavaScript/Reference/…
– Xitalogy
Nov 3 '12 at 9:52
2
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Handling an empty UITableView. Print a friendly message
...l. That's it.
It is of course possible to make UITableView's data source do double duty and return a special "list is empty" cell, it strikes me as a kludge. Suddenly numberOfRowsInSection:(NSInteger)section has to compute the number of rows of other sections it wasn't asked about to make sure th...
What in the world are Spring beans?
... Spring beans that I can understand. I see them referenced often in Grails documentation and books, but I think that understanding what they are would be beneficial. So what are Spring beans? How can they be used? Do they have something to do with Dependency Injection?
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How can I get the current stack trace in Java?
How do I get the current stack trace in Java, like how in .NET you can do Environment.StackTrace ?
21 Answers
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What's the actual use of 'fail' in JUnit test case?
...u until you can finish it
making sure an exception is thrown:
try{
// do stuff...
fail("Exception not thrown");
}catch(Exception e){
assertTrue(e.hasSomeFlag());
}
Note:
Since JUnit4, there is a more elegant way to test that an exception is being thrown:
Use the annotation @Test(expecte...