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Check if a value exists in ArrayList
... itemExistsBasedOnProp = selectedR.stream().map(Request::getDesc).anyMatch(cn::equals); now I need it to extract that item! is it possible ??
– maryem neyli
Jun 15 at 12:05
1
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How do I check to see if a value is an integer in MySQL?
...NED ) // will return 0 if not numeric string.
for example
SELECT CAST('a123' AS UNSIGNED) // returns 0
SELECT CAST('123' AS UNSIGNED) // returns 123 i.e. > 0
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How can I parse a CSV string with JavaScript, which contains comma in data?
...rator may have adjacent whitespace (which is ignored).
Find:
A JavaScript function which converts a valid CSV string (as defined above) into an array of string values.
Solution:
The regular expressions used by this solution are complex. And (IMHO) all non-trivial regular expressions should be prese...
What is the difference between self::$bar and static::$bar in PHP?
...which may not be what you intend:
class Foo
{
protected static $bar = 1234;
}
class Bar extends Foo
{
protected static $bar = 4321;
}
When you call a method via static, you're invoking a feature called late static bindings (introduced in PHP 5.3).
In the above scenario, using self will ...
What exactly is RESTful programming?
...hn&lname=Doe&age=25
The server responds:
200 OK
Location: /user/123
In the future, you can then retrieve the user information:
GET /user/123
The server responds:
200 OK
<fname>John</fname><lname>Doe</lname><age>25</age>
To modify the record (lna...
Load dimension value from res/values/dimension.xml from source code
...call context.dp(R.dimen. tutorial_cross_marginTop) to get the Float value
fun Context.px(@DimenRes dimen: Int): Int = resources.getDimension(dimen).toInt()
fun Context.dp(@DimenRes dimen: Int): Float = px(dimen) / resources.displayMetrics.density
If you want to handle it without context, you can...
Fastest way to determine if an integer's square root is an integer
... if( x == 0 )
return true;
// Check mod 255 = 3 * 5 * 17, for fun
int64 y = x;
y = (y & 4294967295LL) + (y >> 32);
y = (y & 65535) + (y >> 16);
y = (y & 255) + ((y >> 8) & 255) + (y >> 16);
if( bad255[y] )
return false;...
Can I convert a C# string value to an escaped string literal
...
Does not work. If I have "abc\n123" (without quotes, 8 chars), I want "abc" + \n + "123" (7 chars). Instead it produces "abc" + "\\" + "\n123" (9 chars). Notice the slash was doubled and it still contains a string literal of "\n" as two characters, not t...
Count character occurrences in a string in C++
...but I'd suggest you to use this solution instead. As you see you can use a function to encapsulate the code for you so you won't have to write out the for loop everytime, but can just use count_underscores("my_string_") in the rest of your code. Using advanced C++ algorithms is certainly possible he...
What is the maximum length of latitude and longitude? [closed]
... misleading. A completely different issue.
– bugmenot123
May 2 '18 at 15:03
Do you know why the valid latitudes are fr...