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Extract digits from a string in Java
I have a Java String object. I need to extract only digits from it. I'll give an example:
14 Answers
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Getting the closest string match
I need a way to compare multiple strings to a test string and return the string that closely resembles it:
12 Answers
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Read file line by line using ifstream in C++
...gt; a >> b)
{
// process pair (a,b)
}
Line-based parsing, using string streams:
#include <sstream>
#include <string>
std::string line;
while (std::getline(infile, line))
{
std::istringstream iss(line);
int a, b;
if (!(iss >> a >> b)) { break; } // err...
How do I pass data between Activities in Android application?
...sessionId);
startActivity(intent);
Access that intent on next activity:
String sessionId = getIntent().getStringExtra("EXTRA_SESSION_ID");
The docs for Intents has more information (look at the section titled "Extras").
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C++ SFINAE examples?
... a class or not:
int main(void) {
std::cout << IsClassT<std::string>::value << std::endl; // true
std::cout << IsClassT<int>::value << std::endl; // false
return 0;
}
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Best implementation for hashCode method for a collection
...has only one multiplier, while non-prime has at least two. That creates an extra combination for multiplication operator to result the same hash, i.e. cause collision.
– dma_k
Feb 15 '13 at 14:08
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How much is too much with C++11 auto keyword?
...se auto everywhere you can". Does this mean I should write auto str = std::string(); instead of std::string str;?
– Calmarius
Mar 23 '19 at 18:42
5
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How to convert byte array to string and vice versa?
I have to convert a byte array to string in Android, but my byte array contains negative values.
22 Answers
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How to print time in format: 2009‐08‐10 18:17:54.811
...ot want the space between the day and hour, just remove it from the format string.
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Boolean Field in Oracle
... guess i should say double length twos complement floating point), Binary, string, etc. all assume a value is provided but database implementations always add a null value option Boolean isn't any different
– MikeT
Oct 7 '13 at 8:50
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