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Shallow copy of a Map in Java
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It's always better to copy using a copy constructor. clone() in Java is broken (see SO: How to properly override clone method?).
Josh Bloch on Design - Copy Constructor versus Cloning
If you've read the item about cloning in my book, especially if you read between the ...
Appending a line to a file only if it does not already exist
...e
-F pattern is a plain string
https://linux.die.net/man/1/grep
Edit:
incorporated @cerin and @thijs-wouters suggestions.
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Edit line thickness of CSS 'underline' attribute
...This is another heading</u></h4>
CSS :
u {
text-decoration: none;
border-bottom: 10px solid black;
}
Here is an example: http://jsfiddle.net/AQ9rL/
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What does && mean in void *p = &&abc;
...d -pedantic by default. Then people would learn C instead of irrelevant information about gnus.
– Lundin
May 24 '11 at 6:40
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Why Collections.sort uses merge sort instead of quicksort?
We know that quick sort is the fastest sorting algorithm.
1 Answer
1
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No startswith,endswith functions in Go?
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The strings package contains HasPrefix and HasSuffix.
import "strings"
startsWith := strings.HasPrefix("prefix", "pre") // true
endsWith := strings.HasSuffix("suffix", "fix") // true
play.golang.org
shar...
How to write a JSON file in C#?
I need to write the following data into a text file using JSON format in C#. The brackets are important for it to be valid JSON format.
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How to obtain the last path segment of a URI
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is that what you are looking for:
URI uri = new URI("http://example.com/foo/bar/42?param=true");
String path = uri.getPath();
String idStr = path.substring(path.lastIndexOf('/') + 1);
int id = Integer.parseInt(idStr);
alternatively
URI uri = new URI("...
Ruby class types and case statements
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Thanks! Sorry to dupe (or sort of dupe), but several searches didn't turn up that previous question. It seems that the use of === by the case statement is quite a common problem, now that I see this is the problem. This should proba...
How can I list all commits that changed a specific file?
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The --follow works for a particular file
git log --follow -- filename
Difference to other solutions given
Note that other solutions include git log path (without the --follow). That approach is handy if you want to track e.g. changes i...