Convert boolean to integer value php
http://www.php.net/manual/en/language.types.integer.php $myInt = (int)$myBoolean should work
integer
Why doesn’t Java throw an Exception when dividing by 0.0?
Java’s float and double types, like pretty much any other language out there (and pretty much any hardware FP unit), implement the IEEE 754 standard for floating point math, which mandates division by zero to return a special “infinity” value. Throwing an exception would actually violate that standard. Integer arithmetic (implemented as two’s complement representation … Read more
How can I check if a value is of type Integer?
If input value can be in numeric form other than integer , check by if (x == (int)x) { // Number is integer } If string value is being passed , use Integer.parseInt(string_var). Please ensure error handling using try catch in case conversion fails.
Python: create dictionary using dict() with integer keys?
Yes, but not with that version of the constructor. You can do this: >>> dict([(1, 2), (3, 4)]) {1: 2, 3: 4} There are several different ways to make a dict. As documented, “providing keyword arguments […] only works for keys that are valid Python identifiers.”
inheritance from str or int
>>> class C(str): … def __new__(cls, *args, **kw): … return str.__new__(cls, *args, **kw) … >>> c = C(“hello world”) >>> type(c) <class ‘__main__.C’> >>> c.__class__.__mro__ (<class ‘__main__.C’>, <type ‘str’>, <type ‘basestring’>, <type ‘object’>) Since __init__ is called after the object is constructed, it is too late to modify the value for immutable types. Note that … Read more
strcmp equivelant for integers (intcmp) in PHP
Sort your data with: function sortScripts($a, $b) { return $a[‘order’] – $b[‘order’]; } Use $b-$a if you want the reversed order. If the numbers in question exceed PHP’s integer range, return ($a < $b) ? -1 : (($a > $b) ? 1 : 0) is more robust.
How to handle very large numbers in Java without using java.math.BigInteger
I think a programmer should have implemented his own bignum-library once, so welcome here. (Of course, later you’ll get that BigInteger is better, and use this, but it is a valuable learning experience.) (You can follow the source code of this course life on github. Also, I remade this (a bit polished) into a 14-part … Read more
SQLite3 Integer Max Value
Look at http://www.sqlite.org/datatype3.html Minimum is -(263) == -9223372036854775808 and maximum is 263 – 1 == 9223372036854775807 I would think you should use a varchar http://www.sqlite.org/lang_attach.html http://www.sqlite.org/lang_createtable.html might be of help SQLite ‘no such table’ error in general check out the sqlite documentation
find if an integer exists in a list of integers
If you just need a true/false result bool isInList = intList.IndexOf(intVariable) != -1; if the intVariable does not exist in the List it will return -1
In C#, how to check whether a string contains an integer?
You could use char.IsDigit: bool isIntString = “your string”.All(char.IsDigit) Will return true if the string is a number bool containsInt = “your string”.Any(char.IsDigit) Will return true if the string contains a digit