c# - Why should i use implicit/explicit operator? -

check code bellow:

class money {     public money(decimal amount)     {         amount = amount;     }      public decimal amount { get; set; }      public static implicit operator decimal(money money)     {         return money.amount;     }      public static explicit operator int(money money)     {         return (int)money.amount;     } } 

i dont understand how useful in code, couldnt method like:

public static int returnintvaluefrom(money money) {     return (int)money.amount; } 

would not easier , clearer implement?

this done allow money added other money. without piece of code, cause compiler error, "operator '+' cannot applied operands of type 'money' , 'int'"

money money = new money(5.35m); decimal net = money + 6; 

with casting operator present allows these types of conversions made without throwing exception. can assist in readability , allow polymorphism different currencies implement own types of casts example.