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How do I erase an element from std::vector by index?
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To delete a single element, you could do:
std::vector<int> vec;
vec.push_back(6);
vec.push_back(-17);
vec.push_back(12);
// Deletes the second element (vec[1])
vec.erase(vec.begin() + 1);
Or, to delete more than one element at once:
// Deletes the second through third el...
Fragments onResume from back stack
...pportFragmentManager();
if (manager != null) {
int backStackEntryCount = manager.getBackStackEntryCount();
if (backStackEntryCount == 0) {
finish();
}
Fragment fragment = manager.getFragments()
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Why is a C++ Vector called a Vector?
...' for a fixed-length sequence of numbers. C++11 compounds this mistake by introducing a class 'array' that behaves similarly to a mathematical vector.
Alex's lesson: be very careful every time you name something.
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adding multiple entries to a HashMap at once in one statement
...You can use the Double Brace Initialization as shown below:
Map<String, Integer> hashMap = new HashMap<String, Integer>()
{{
put("One", 1);
put("Two", 2);
put("Three", 3);
}};
As a piece of warning, please refer to the thread Efficiency of Java “Double Brace Initializat...
How do I run a batch file from my Java Application?
...how. So I guess either Java or Windows fixed part of the problem at some point. If we try to exec "gradlew", that fails though, so clearly the ".bat" is still needed on the end.
– Trejkaz
Sep 26 '17 at 6:52
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Loader lock error
...ckMsg break="true"/> </mda:msg> VS then presents multiple breakpoints during the CTOR sequence. Turning off the LoaderLock setting doesn't help. For me, I had to tick the top MDA option (for ALL MDA) then untick the top level option (for no MDA), then build+run. This didn't work for my col...
What does LINQ return when the results are empty
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Point editor is making is sound, though, DB or not. I believe they are saying .Any() is just going to tell you if you have any matching records, at all, where doing an actual query to find a specific value might be null when ....
T-SQL: Deleting all duplicate rows but keeping one [duplicate]
...e, if ever you're unsure of what will be deleted/retained, turn the delete into a select and make sure. Better safe than sorry.
– Ben Thul
Sep 19 '12 at 1:03
2
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How to use NSJSONSerialization
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It should, that why I added the check if !jsonArray and printed out the error. This should display any error that occurred during parsing.
– rckoenes
Dec 2 '11 at 13:25
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How does the NSAutoreleasePool autorelease pool work?
...is a no-op. Thus it has no effect. drain, on the other hand, contains a hint to the collector that it should "collect if needed". Thus in a garbage-collected environment, using drain helps the system balance collection sweeps.
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