Haskell: Converting Int to String
The opposite of read is show.
casting
Convert boolean to int in Java
^^ PS : true = 1 and false = 0
casting int to char using C++ style casting
You should use static_cast<char>(i) to cast the integer i to char. reinterpret_cast should almost never be used, unless you want to cast one type into a fundamentally different type. Also reinterpret_cast is machine dependent so safely using it requires complete understanding of the types as well as how the compiler implements the cast. For more information about C++ casting see: When should static_cast, … Read more
How to convert string to boolean php
Strings always evaluate to boolean true unless they have a value that’s considered “empty” by PHP (taken from the documentation for empty): “” (an empty string); “0” (0 as a string) If you need to set a boolean based on the text value of a string, then you’ll need to check for the presence or otherwise of that value. … Read more
How to cast ArrayList<> from List<>
When you do the second one, you’re making a new arraylist, you’re not trying to pretend the other list is an arraylist. I mean, what if the original list is implemented as a linkedlist, or some custom list? You won’t know. The second approach is preferred if you really need to make an arraylist from … Read more
String was not recognized as a valid DateTime ” format dd/MM/yyyy”
Use DateTime.ParseExact.
How can I cast int to enum?
From an int: From a string: Update: From number you can also
How should I cast in VB.NET?
Those are all slightly different, and generally have an acceptable usage. var.ToString() is going to give you the string representation of an object, regardless of what type it is. Use this if var is not a string already. CStr(var) is the VB string cast operator. I’m not a VB guy, so I would suggest avoiding it, but it’s not … Read more
Pandas error “Can only use .str accessor with string values”
It’s happening because your last column is empty so this becomes converted to NaN: If you slice your range up to the last row then it works: Alternatively you can just select the cols that are object dtype and run the code (skipping the first col as this is the ‘Name’ entry):
No function matches the given name and argument types
Your function has a couple of smallint parameters.But in the call, you are using numeric literals that are presumed to be type integer. A string literal or string constant (‘123’) is not typed immediately. It remains type “unknown” until assigned or cast explicitly. However, a numeric literal or numeric constant is typed immediately. The manual: A numeric constant that contains neither a decimal … Read more