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What is the “continue” keyword and how does it work in Java?
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Let's see an example:
int sum = 0;
for(int i = 1; i <= 100 ; i++){
if(i % 2 == 0)
continue;
sum += i;
}
This would get the sum of only odd numbers from 1 to 100.
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What is the real overhead of try/catch in C#?
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Three points to make here:
Firstly, there is little or NO performance penalty in actually having try-catch blocks in your code. This should not be a consideration when trying to avoid having them in your application. The performanc...
iOS: How to get a proper Month name from a number?
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Another option is to use the monthSymbols method:
int monthNumber = 11; //November
NSDateFormatter *df = [[[NSDateFormatter alloc] init] autorelease];
NSString *monthName = [[df monthSymbols] objectAtIndex:(monthNumber-1)];
Note that you'll need to subtract 1 from your 1...
When should you not use virtual destructors?
...is no need to use a virtual destructor when any of the below is true:
No intention to derive classes from it
No instantiation on the heap
No intention to store in a pointer of a superclass
No specific reason to avoid it unless you are really so pressed for memory.
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How do disable paging by swiping with finger in ViewPager but still be able to swipe programmaticall
...that you don't want to change like allowing child views to get touches. onInterceptTouchEvent is what you want to change. If you look at the code for ViewPager, you'll see the comment:
/*
* This method JUST determines whether we want to intercept the motion.
* If we return true, onM...
Does PowerShell support constants?
I would like to declare some integer constants in PowerShell.
6 Answers
6
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What is the point of noreturn?
...embly dump (-S -o - flags in coliru), indeed drops the "unreachable" code. Interestingly enough, -O1 is already enough to drop that unreachable code without the [[noreturn]] hint.
– TemplateRex
Aug 21 '13 at 13:23
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How to pass “Null” (a real surname!) to a SOAP web service in ActionScript 3
...ML
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When currentChild.appendChild is passed the string "null", it first converts it to a root XML element with text null, and then tests that element against the null literal. This is a weak equality test, so either the XML containing null is coerced to the null type, or the null type is coerced ...
Tree data structure in C#
...Build an AddChild method that takes care of all the minutia of these two points and any other business logic that must be implemented (child limits, sorting the children, etc.)
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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...will take O(n=1) time, i.e. is the container sorted such that there is a pointer directly to each item, or does the boost container retrieve a list that matches the first part of the composite key and then need to perform a search for items matching the second part of the key and thus is slower?For ...