Can you Answer some problem about C#

Question

i have this. what's it mean ?

bool checkValid(bool flag, int value)
{
if (flag)
{
if (value <= 0)
{
return true;
}
}
else
{
if (value >= 0)
{
return true;
}
}
return false;
}
it has erro in my checkValid..

Answer 1

do you have any sort of inputs, that correspond to the method parameters?