Design patterns

[ahmethudaiaydin]

Try not to use "switch-case". Do you think it is possible?

[Wanarut]

which where?

[ahmethudaiaydin]

Every switch. Specially, for the math operators ie: '+', '-' ....

[Wanarut]

I can use if else but the code will be long. so,I will use switch case for choose way to calculate.

[ahmethudaiaydin]

No, I'm not talking about using if else. You can create classes for every math operator then use these classes in your code without an if or switch-case. Like:

abstract class MathOperator{ abstract string sign{get;set} // "+", "-", "/" or "*" abstract int process(int firstValue, int secondValue); } class PlusOperation :MathOperator { string sign { get {return "+";}} int process(int first, int second){ return first + second; } }

class MinusOperation: MathOperator{ ..... }

You can collect a new instance of these operations and when you want to calculate, you call call process method in a foreach.