Expression problem: Difference between revisions

Revision as of 22:22, 6 July 2021

Revision as of 22:31, 6 July 2021

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public static int EvaluateTheSumOfOneAndTwo() => AddOneAndTwo().Eval();

}

</syntaxhighlight>Using this library we can express the arithmetic expression ''1 + 2'' as we did in ''ExampleOne.AddOneAndTwo()'' and can evaluate the expression by calling ''.Eval()''. Now imagine that we wish to extend this library, adding a new type is easy because we are working with an [[Object-oriented programming|Object-oriented Orientedprogramming Programming Languagelanguage]]. For example, we might create the following class:<syntaxhighlight lang="c#" line="1">

public class Mult : IEvalExp

{