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What is different between ref and out when I declared argument in method? ?

I need clear answer

4th Jan 2017, 8:50 PM
mostffa hassan
mostffa hassan - avatar
1 Odpowiedź
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*)if you enter the parameter without ref or out then we are dealing with a 'local variable' for the method that have the same value of the variable intered as parameter but in different variable that ends when the method ends *) ref means that you give the reference of the variable to the method then the method will not create a local variable , it will work using the variable itself .. that means that the method knows the value of the variable before executing it and it it can change it during executing *)out also means that the method has the variable itsel but the difference here is that it does not have the variable value before being executed ( it will initialize the variable and give it a value but will not take an initiale value from outside the method) ___________________________________________ out is used when you need more than one return in your method ,when ref is used when you want to change the value of a variable. hope this help :)
4th Jan 2017, 9:53 PM
Ihab Taleb
Ihab Taleb - avatar