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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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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.
Similar questions:
GetHashCode on null fields?
What should GetHashCode return when object's identifier is null?
Th...
AddRange to a Collection
...erfectly reasonable. There is a List<T>.AddRange() method that basically does just this, but requires your collection to be a concrete List<T>.
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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 to trigger HTML button when you press Enter in textbox?
... must have been having a brain fart.
– Tim at MastersAllen
May 18 '16 at 8:26
5
WARNING It is dep...
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...
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 It is now abandonware, so it's no longer maintained (and not available on the Novell website), but it's free to use.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...
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...
Best way to add Activity to an Android project in Eclipse?
When adding an activity to an existing Android project, I manually create a new class - is that the best / preferred way? How do others handle that?
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How to replace DOM element in place using Javascript?
......).
Any string value will be added as a text element.
Examples:
// Initially [child1, target, child3]
target.replaceWith(span, "foo") // [child1, span, "foo", child3]
const list = ["bar", span]
target.replaceWith(...list, "fizz") // [child1, "bar", span, "fizz", child3]
Safely handling nu...