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Is there a range class in C++11 for use with range based for loops?
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There has been much progress lately to get ranges into the standard (N4128). See github.com/ericniebler/range-v3 for a proposal and reference implementation.
– Ela782
Feb 21 '15 at 19:27
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Is there a common Java utility to break a list into batches?
I wrote myself a utility to break a list into batches of given size. I just wanted to know if there is already any apache commons util for this.
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How to find all combinations of coins when given some dollar value
I found a piece of code that I was writing for interview prep few months ago.
35 Answers
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Parsing a comma-delimited std::string [duplicate]
...mbers, what's the simplest way to parse out the numbers and put them in an integer array?
18 Answers
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Why can I initialize a List like an array in C#?
...f the initializer.
Thus, these two blocks are roughly identical:
List<int> a = new List<int> { 1, 2, 3 };
And
List<int> temp = new List<int>();
temp.Add(1);
temp.Add(2);
temp.Add(3);
List<int> a = temp;
You can call an alternate constructor if you want, for examp...
Increment value in mysql update query
... in this query uses an arithmetic operator (the plus symbol +), MySQL will convert any strings in the expression to numbers.
To demonstrate, the following will produce the result 6:
SELECT ' 05.05 '+'.95';
String concatenation in MySQL requires the CONCAT() function so there is no ambiguity here...
C++ sorting and keeping track of indexes
...alues) : _values(values) {} public: bool operator() (const int& a, const int& b) const { return (_values)[a] > (_values)[b]; } };
– Yoav
Oct 18 '12 at 7:47
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How to display long messages in logcat
...u want to log with String.subString() and log it in pieces. For example:
int maxLogSize = 1000;
for(int i = 0; i <= veryLongString.length() / maxLogSize; i++) {
int start = i * maxLogSize;
int end = (i+1) * maxLogSize;
end = end > veryLongString.length() ? veryLongString.length()...
How to iterate through SparseArray?
...iced the keyAt(index) function.
So I'll go with something like this:
for(int i = 0; i < sparseArray.size(); i++) {
int key = sparseArray.keyAt(i);
// get the object by the key.
Object obj = sparseArray.get(key);
}
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How to parse float with two decimal places in javascript?
... Use var twoPlacedFloat = + parseFloat(yourString).toFixed(2) to convert to float
– Jose Rui Santos
Jul 23 '14 at 10:52
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