CODEWITHSUNDEEP
c#.net
jawed
jawed

Reputation: 51

Confusion with for loop in c# programming language

I am new in C# programming language and I confused with a question. I have a for loop that increase two times by one in one cycle, but in each cycle it increase once.

What is the reason it does omit the i++?

string inValue;
for (int i = 0; i < 10; i++)
{
    Console.Write("Enter Score{0}: ", i + 1);
    inValue = Console.ReadLine();                   
}

Upvotes: 1

Views: 108

Answers (3)

Gilad Green
Gilad Green

Reputation: 37299

The ++ increment operator increases value only by one

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

To increase twice:

for (int i = 0; i < 10; i+=2)
{
    Console.Write("Enter Score{0}: ", i);                 
}

Read more: Increment (++) and Decrement (--) Operators

|      If     |    Equivalent Action   |    Return value           |
|  variable++ |      variable += 1     |  value of variable before |
|             |                        |     incrementing          |

The following row:

Console.Write("Enter Score{0}: ", i + 1);

increases the value of i by plus 1 but that is not stored into i. It is like writing:

int b = i+1; // i is  not affected. New value never stored back into i
Console.Write("Enter Score{0}: ", b);

Any of the following ways will increase value by 2:

//Option 1
for (int i = 0; i < 10; i +=2)

//Option2
Console.Write("Enter Score{0}: ", i++);

//Option3
i = i+1;
Console.Write("Enter Score{0}: ", i);

Upvotes: 3

fauri hakim
fauri hakim

Reputation: 21

i++ means you just increase the i by 1 or simply you can just write the code like this i = i + 1. So if you want loop with increase i + 2, you can write down code like this:

for(int i = 0; i < 10; i += 2)
{
   Console.Write("Enter Score{0}: ", i);
   inValue = Console.ReadLine(); 
}

The loop will increase i by 2.

Upvotes: 2

Rom
Rom

Reputation: 1193

(i++) increases i by 1, it's like writing : i = i + 1. (i + 1) does not increases i.

Upvotes: 0

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