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Rollback a Git merge
... commit before the merge is 50+ commits back, as the git merge develop actually puts in all the other commits. I guess what I dont get is, if I dont know what/where that merge was - how do I find it? You mention finding the commit_before_merge .. I guess I am not understanding that part
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Should the hash code of null always be zero, in .NET
...code.
Returning 0 or -1 for null, so long as you choose one and return it all the time, will work. Obviously, non-null hash codes should not return whatever value you use for null.
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GetHashCode on null fields?
What should GetHashCode return when object's identifier is null?
Th...
How to convert a Map to List in Java?
...nvert a Map<key,value> to a List<value> ? Just iterate over all values and insert them in a list or am I overlooking something?
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How to copy a file to multiple directories using the gnu cp command
...args -n 1 cp file1
Will copy file1 to dir1, dir2, and dir3. xargs will call cp 3 times to do this, see the man page for xargs for details.
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Java ArrayList copy
...a reference) to l2. They will both refer to the same object.
Creating a shallow copy is pretty easy though:
List<Integer> newList = new ArrayList<>(oldList);
(Just as one example.)
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Android - how do I investigate an ANR?
...ocking operations from within the event thread. You should make sure these all happen in separate threads. If nothing seems the problem, use DDMS and enable the thread view. This shows all the threads in your application similar to the trace you have. Reproduce the ANR, and refresh the main thread a...
Difference between Arrays.asList(array) and new ArrayList(Arrays.asList(array))
... which makes the original array available as a list. Nothing is copied and all, only a single wrapper object is created. Operations on the list wrapper are propagated to the original array. This means that if you shuffle the list wrapper, the original array is shuffled as well, if you overwrite an e...
Overload with different return type in Java?
... alone is not sufficient for the compiler to figure out which function to call:
public int foo() {...}
public float foo() {..}
...
foo(); // which one?
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How do I mount a remote Linux folder in Windows through SSH? [closed]
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Back in 2002, Novell developed some software called NetDrive that can map a WebDAV, FTP, SFTP, etc. share to a windows drive letter. It is now abandonware, so it's no longer maintained (and not available on the Novell website), but it's free to use. I found quite a few a...
What is the difference between '>' and a space in CSS selectors?
...o scenarios div > span { } vs. div span { }
Here, the (space) selects all the all the <span> elements inside <div> element even if they are nested inside more than one element. The > selects all the children of <div> element but if they are not inside another element.
Take...