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Functional style of Java 8's Optional.ifPresent and if-not-Present?
In Java 8, I want to do something to an Optional object if it is present, and do another thing if it is not present.
12 A...
Changing UIImage color
I'm trying to change color of UIImage. My code:
13 Answers
13
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Getting the difference between two sets
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Set#removeAll
Removes from this set all of its elements that are contained in the specified collection (optional operation). If the specified collection is also a set, this operation effectively modifies this set so that its value is the asymmetric set difference of the two sets.
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Export and Import all MySQL databases at one time
... 100 MySQL databases. I want to export all of them at the same time and again import all of them into my MySQL server at one time. How can I do that?
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“fatal: Not a git repository (or any of the parent directories)” from git status
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You have to actually cd into the directory first:
$ git clone git://cfdem.git.sourceforge.net/gitroot/cfdem/liggghts
Cloning into 'liggghts'...
remote: Counting objects: 3005, done.
remote: Compressing objects: 100% (2141/2141), done.
remote: Total...
Reference list item by index within Django template?
This may be simple, but I looked around and couldn't find an answer. What's the best way to reference a single item in a list from a Django template?
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Why do we have map, fmap and liftM?
Why do we have three different functions that do essentially the same thing?
1 Answer
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Java packages com and org
What are the meaning of the packages org and com in Java?
4 Answers
4
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What do numbers using 0x notation mean?
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Literals that start with 0x are hexadecimal integers. (base 16)
The number 0x6400 is 25600.
6 * 16^3 + 4 * 16^2 = 25600
For an example including letters (also used in hexadecimal notation where A = 10, B = 11 ... F = 15)
The number 0x6BF0 is 27632.
6 * 16^3 + 11 ...
How to ignore SSL certificate errors in Apache HttpClient 4.0
How do I bypass invalid SSL certificate errors with Apache HttpClient 4.0?
23 Answers
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