How to convert char to operator?

Question

Java

Hey! the question is elementary, but not for me:
we have:
int a = 1;
int b = 1;
char c = '+';
how to make it work System.out.print(a + c + b) is math correct (1 + 1 = 2)
and is it possible to assign variable " acb " like 1 + 1 = 2?????
I hope you understand me....

Answer 1

Alas, it’s not so easy to do this in Java, there is no operator overloading in Java. You need to write your own parser and interpreter.
But! The easiest option is to use scripts or classes in the groovy language, since it is very friendly with Java. The interpreter and parser is already written for you. Download groovy, connect the jar to your project, and you're good to go.

import groovy.util.Eval
....
assert Eval.me('33*3') == 99
assert Eval.me('"foo".toUpperCase()') == 'FOO'

groovy-lang.org/integrating.html