Most efficient way of converting String to Integer in java

Question

There are many ways of converting a String to an Integer object. Which is the most efficient among the below:

Integer.valueOf()
Integer.parseInt()
org.apache         


        

Answer 1

Don't even waste time thinking about it. Just pick one that seems to fit with the rest of the code (do other conversions use the .parse__() or .valueOf() method? use that to be consistent).

Trying to decide which is "best" detracts your focus from solving the business problem or implementing the feature.

Don't bog yourself down with trivial details. :-)

On a side note, if your "use case" is specifying java object data types for your code - your BA needs to step back out of your domain. BA's need to define "the business problem", and how the user would like to interact with the application when addressing the problem. Developers determine how best to build that feature into the application with code - including the proper data types / objects to handle the data.