How do I convert an Any to an Integer?
Specifically, I have a function that returns Any, and in one situation I know it will return a number of type Any, and I need that number to be converted to type Integer so I can use it in another function.
A string can be converted to integer in Scala using the toInt method. This will return the integer conversion of the string. If the string does not contain an integer it will throw an exception with will be NumberFormatException.
In Dynamic Programming Languages like Scala, it often becomes necessary to cast from type to another. Type Casting in Scala is done using the asInstanceOf[] method. Applications of asInstanceof method. This perspective is required in manifesting beans from an application context file.
The toCharArray() method is utilized to convert a stated string to CharArray. Return Type: It returns CharArray.
Your function is likely designed very poorly. 99% of the time there is a better way, then just returning Any
from an API entry point.
If you insist on having to deal with Any
, a safe way to convert it to an int would be something like this:
def toInt(x: Any): Option[Int] = x match {
case i: Int => Some(i)
case _ => None
}
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