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How do I detect unsigned integer multiply overflow?
...ting a program in C++ to find all solutions of a b = c , where a , b and c together use all the digits 0-9 exactly once. The program looped over values of a and b , and it ran a digit-counting routine each time on a , b and ab to check if the digits condition was satisfied.
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Cannot use ref or out parameter in lambda expressions
...ld need to be visible on the ref parameter itself. Both within the method and in the caller.
These are somewhat incompatible properties and are one of the reasons they are disallowed in lambda expressions.
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Convert array of strings into a string in Java
...arr) {
builder.append(s);
}
String str = builder.toString();
(Java 8 and above):
String str = String.join(",", arr);
And if you're coming from the Android angle:
String str = TextUtils.join(",", arr);
You can modify the above depending on what characters, if any, you want in between stri...
Stripping out non-numeric characters in string
... fractions, subscripts, superscripts, Roman numerals, currency numerators, and encircled numbers. This method contrasts with the IsDigit method, which determines whether a Char is a radix-10 digit." msdn.microsoft.com/en-us/library/yk2b3t2y.aspx
– LukeH
Oct 20 ...
How to make a Java Generic method static?
...ic type variable.
Additionally, type variables between types (ArrayUtils) and static methods (appendToArray) never interfere with each other.
So, what does this mean:
In my answer <E> would hide the E from ArrayUtils<E> if the method wouldn't be static. AND <E> has nothing to do ...
How to get JS variable to retain value after page refresh? [duplicate]
...o permanently change a javascript variable? As in, if I set the variable X and make that equal to 1. Then onClick of a button change that variable to 2. How can I get that variable to stay at 2 on refresh of the page?
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Center Align on a Absolutely Positioned Div
...t. This is awesome! Could you explain how it works? Edit: Did some hunting and it seems like the left: 50% moves the div's left location to the center, which isn't really center. But the translateX shifts it back 50% of the content's width
– Aziz Javed
Nov 10 '...
Using Mockito with multiple calls to the same method with the same arguments
...nswer() do not allow chaining multiple calls as doReturn()/thenReturn() do and I needed to compute something and not just return a different value. Creating an anonymous Answer object with a private count variable was what did the trick for me.
– Lucio Paiva
Au...
CROSS JOIN vs INNER JOIN in SQL
What is the difference between CROSS JOIN and INNER JOIN ?
12 Answers
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Error message Strict standards: Non-static method should not be called statically in php
...me=''){
if you want to call them statically.
Note that static methods (and Singletons) are death to testability.
Also note that you are doing way too much work in the constructor, especially all that querying shouldn't be in there. All your constructor is supposed to do is set the object into a...