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Compare two objects in Java with possible null values
...seful for sorting. You should return <0, ==0 or >0 to indicate which one is lower/grater than the other
– coya
Dec 15 '16 at 23:24
12
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Objective-C: Calling selectors with multiple arguments
...Selectors
- (void) fooNoInputs {
NSLog(@"Does nothing");
}
- (void) fooOneIput:(NSString*) first {
NSLog(@"Logs %@", first);
}
- (void) fooFirstInput:(NSString*) first secondInput:(NSString*) second {
NSLog(@"Logs %@ then %@", first, second);
}
- (void) performMethodsViaSelectors {
[...
Which types can be used for Java annotation members?
...specified by section 9.6.1 of the JLS. The annotation member types must be one of:
primitive
String
an Enum
another Annotation
Class
an array of any of the above
It does seem restrictive, but no doubt there are reasons for it.
Also note that multidimensional arrays (e.g. String[][]) are implicitly...
Git submodule inside of a submodule (nested submodules)
...
As mentioned in Retrospectively add --recursive to a git repo
git submodule update --init --recursive
should work.
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impro...
How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu
...a list of all the assemblies that are loaded into the process. Locate the one you want to get debug info for. Right-click it and select Symbol Load Information. You'll get a dialog that lists all the directories where it looked for the .pdb file for the assembly. Verify that list against the act...
What is the difference between allprojects and subprojects
On a multi-project gradle build, can someone tell me what exactly is the difference between the "allprojects" section and the "subprojects" one? Just the parent directory? Does anyone use both? If so, do you have general rules that determines what typically is put in each one?
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What's the difference between utf8_general_ci and utf8_unicode_ci?
...o equivalent _general variant. People reading this now should probably use one of these newer collations instead of either _unicode or _general. Much of what's written below is not of much interest anymore if you can use one of the newer collations instead.
Key differences
utf8mb4_unicode_ci is bas...
Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
...use it and see a little goto, which by itself is just a tool, than see someone having moved the loop somewhere unrelated just to avoid a goto.
– Chris Lutz
Feb 2 '10 at 20:18
18
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How do I make a transparent border with CSS?
...landing here to find a solution for opaque border instead of a transparent one. In that case you can use rgba, where a stands for alpha.
.your_class {
height: 100px;
width: 100px;
margin: 100px;
border: 10px solid rgba(255,255,255,.5);
}
Demo
Here, you can change the opacity of t...
Git Blame Commit Statistics
...s -0 ... # passes newlines as '\0'
Give a list of files (through a pipe) one can use xargs to call a command and distribute the arguments. Commands that allow multiple files to be processed obmit the -n1. In this case we call git blame --line-porcelain and for every call we use exactly 1 argument....