what the problem in sum += 1?

Gil Rozenberg

10y946SQL

for (int i = 0; i < sum; i++)
{
sum += 1;

Label1.Text = "number is" + i;
}

3 Replies

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Manoj Bhoir10y ago
Hi,

As per your code, if initially sum = 1 then,
i < sum i.e. (0 < 1) = true hence sum += 1 i.e. sum = 2 and i++
Now, i < sum i.e. (1 < 2) = true hence sum += 1 i.e. sum = 3 and i++
Again, i < sum i.e. (2 < 3) and so on......

So the problem is never ending loop :

for (int i = 0; i < sum; i++)
{
sum += 1;
Label1.Text = "number is" + i;
}

I hope this will help you. :)
0
Francis Susaimichael10y ago
Within the for loop you are increasing the value of the variable "sum" by 1 every time. So it will form the loop like infinite.
0
Rajeesh Menoth10y ago
Hi,

Check this code :
using System;
public class Program
{
public static void Main()
{
int sum = 2;
for (int i = 0; i < sum; i++)
{
sum += 1;
Console.WriteLine("number is : {0}", i);
}
}
}
OutPut :

The loop will print long output finally you will get exception.
number is : 0
number is : 1
number is : 2
number is : 3
number is : 4
number is : 5
number is : 6
number is : 7
number is : 8
.
.
.
number is : 5616
number is : 5617
Run-time exception (line 11): Code output limit was exceeded

Demo :

https://dotnetfiddle.net/lBoHG5
0