C#•8mo ago

❔ why does it say this variable is undeclared?

14 Replies

stubby•8mo ago

more normal screenshot

reflectronic•8mo ago

they are called roe and colum not row and column

stubby•8mo ago

for some reason my variables in my return statement are undeclared yeah i know but i remade them in the function method idk

stubby•8mo ago

reflectronic•8mo ago

right, that is better, because you are actually declaring the variables now, but the problem is that you are declaring them in the wrong place because you declared them inside the try, you can only use them inside of it

stubby•8mo ago

oh ok can i pass it from the try to everything else

reflectronic•8mo ago

you would need to move them outside, next to your string roe; to use them from the return

stubby•8mo ago

because if i declare outside, my code doesnt work the way i want it to

reflectronic•8mo ago

int row;
int column;

while (true)
{
    string roe = Console.ReadLine();
    string colum = Console.ReadLine();
    // …
    try
    {
        row = int.Parse(roe);
        // …
    }
}

return (row, column);

int row;
int column;

while (true)
{
    string roe = Console.ReadLine();
    string colum = Console.ReadLine();
    // …
    try
    {
        row = int.Parse(roe);
        // …
    }
}

return (row, column);

stubby•8mo ago

ok i will try that now thanks for helping @reflectronic the code stops running at row = int.Parse(roe); like the try fails and moves onto the catch i got it to work its fine THANKS

Tvde1•8mo ago

Also doesn't work as the variables are declared but don't have a value. What if you set a break point, and change while(true) into while(false)? Then the strings don't have a value and return is impossible Or is this incorrect for ints?

reflectronic•8mo ago

if you change the code then the code needs to be recompiled and it becomes an error as the code is written it is guaranteed that they are assigned if the code breaks out of the while loop, which is all that matters

Accord•8mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ why does it say this variable is undeclared?