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Call int() function on every list element?
...int, numbers)
Note: in Python 3.x map returns a map object which you can convert to a list if you want:
numbers = list(map(int, numbers))
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Assigning variables with dynamic names in Java
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Excellent when you need to convert Android's sensor event.values[] into a set of variables. event.values[] could have a length from 1 to 6 and it's handy to have it convert, in my case for an array-less json marshaling.
– Farshid ...
How to convert comma-delimited string to list in Python?
...",")
>>> print my_list
['A', 'B', 'C', 'D', 'E']
If you want to convert it to a tuple, just
>>> print tuple(my_list)
('A', 'B', 'C', 'D', 'E')
If you are looking to append to a list, try this:
>>> my_list.append('F')
>>> print my_list
['A', 'B', 'C', 'D', 'E...
How does Python manage int and long?
...ory to handle this increase in min/max values. Where in Python 2, it would convert into 'long', it now just converts into the next size of Int.
Example: If you are using a 32 bit operating system, your max value of an Int will be 2147483647 by default. If a value of 2147483648 or more is assigned, ...
Is it possible to get element from HashMap by its position?
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Use a LinkedHashMap and when you need to retrieve by position, convert the values into an ArrayList.
LinkedHashMap<String,String> linkedHashMap = new LinkedHashMap<String,String>();
/* Populate */
linkedHashMap.put("key0","value0");
linkedHashMap.put("key1","value1");
linked...
What is an unsigned char?
...nsigned.
Now, i had a discussion with someone about what happens when you convert the value -1 of type int to unsigned char. He refused the idea that the resulting unsigned char has all its bits set to 1, because he was worried about sign representation. But he don't have to. It's immediately follo...
register int i;的含义 - c++1y / stl - 清泛IT社区，为创新赋能！
register声明的作用是为了提高效率。
它明确要求CPU把变量始终保存在寄存器里面，直至它消亡。
不过现代编译器都很厉害，根本不需要你多此一举。
所以根本就极少用。大多数情况下，你声明了也没有用，因为编译器不会...
How do I get currency exchange rates via an API such as Google Finance? [closed]
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Thanks for all your answers.
Free currencyconverterapi:
Rates updated every 30 min
API key is now required for the free server.
A sample conversion URL is: http://free.currencyconverterapi.com/api/v5/convert?q=EUR_USD&compact=y
For posterity here they are alon...
Test if string is a guid without throwing exceptions?
I want to try to convert a string to a Guid, but I don't want to rely on catching exceptions (
18 Answers
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Java rounding up to an int using Math.ceil
... using either option 1 or option 2. Please do NOT use option 0.
##Option 0
Convert a and b to a double, and you can use the division and Math.ceil as you wanted it to work. However I strongly discourage the use of this approach, because double division can be imprecise. To read more about imprecisio...