variable scope in statement blocks

Question

for (int i = 0; i < 10; i++)
{
    Foo();
}
int i = 10; // error, \'i\' already exists

----------------------------------------    

for (int i = 0; i < 10; i         


        

Answer 1

Me thinks that the compiler means to say that i has been declared at the method level & scoped to within the for loop.

So, in case 1 - you get an error that the variable already exists, which it does

& in case 2 - since the variable is scoped only within the for loop, it cannot be accessed outside that loop

To avoid this, you could:

var i = 0;

for(i = 0, i < 10, i++){
}

i = 10;

but I can't think of a case where you would want to do this.

HTH