C# 0 The Complete Reference

PART I

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PART IPART I

this statement says “add to 

sum

 the value of 

sum

 plus 

i

, then increment 

i

.” Thus, it is the 

same as this sequence of statements:

sum = sum + i;

i++;

Declaring Loop Control Variables Inside the for Loop

Often the variable that controls a 

for

 loop is needed only for the purposes of the loop and 

is not used elsewhere. When this is the case, it is possible to declare the variable inside the 

initialization portion of the 

for

. For example, the following program computes both the 

summation and the factorial of the numbers 1 through 5. It declares its loop control variable