what kind of data type are these +/-/*

Question

I wanna use +, *, - as data type
like this

d = +;
but what kind of data type is this? should I use string or what?

Answer 1

maybe this will help?

especially the calculator example at the bottom

https://hashnode.com/post/anonymous-functions-in-java-explained-cj1opkbj8000sml53bsq6r6cj

Answer 2

You can't store operators in variables. Your best bet is to store the symbols as character or string, and then interpret them correspondingly.

Answer 3

just announce them as strings

Answer 4

They're not data types, they are operators. + is addition, and so on.