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for (var i = 0; i < count; i++) { } == for (var i = 0; i < count; i++) { }. What is this notation and why use it? [closed]

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Closed 3 years ago.
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Ran into the notation:
for (var i = 0; i < count; i++) { }
on this tutorial. I gather it is equivalent to:
for(var i = 0; i < count; i++) { }
What is this notation? Why use it? Does it perform better?

It's an HTML parsing error. < is supposed to show up as <. You're right - it's supposed to be i < count.

Accessing non-static varibles from an array [closed]

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Closed 5 years ago.
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Quick question:
I am writing in unity c#, and have an array containing several instances of the same object. I want to change a non-static bool in every member of the array, and set it to true. How would I do this?
I have played around with for-loops, and searched both here and at the unity forums, but cannot find an answer. I don't believe my messy, faulty code would be of any help. Anybody care to enlighten me? :)
EDIT: Thanks for the tips, will try them now. The code was asked for, excuse the mess:
Component[] toMerge;
for (int t = 0; t < mergeTargets.Length; i++) {
toMerge[t] = mergeTargets[t].gameObject.GetComponent<Enemy>();
toMerge.readyToMerge = true;
}
for (int t = 0; t < toMerge.Length; t++) {
toMerge[t].readyToMerge = true;
}

You have to allocate mergeTargets.Length items in toMerge array and address not the array but its item:
//DONE: We need mergeTargets.Length items in toMerge
Component[] toMerge = new Component[mergeTargets.Length];
for (int t = 0; t < mergeTargets.Length; i++) {
toMerge[t] = mergeTargets[t].gameObject.GetComponent<Enemy>();
//DONE: [t] - we want to change item, not the array
toMerge[t].readyToMerge = true;
}

Why does for-loop show nothing in cmd [closed]

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Closed 6 years ago.
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I have problem with for loop in C#.
I have the following code, in main method:
using System;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
for(int i=0;i>20;i++)
{
if(i%2==0)
{
Console.WriteLine("{0},", i);
}
}
Console.ReadLine();
}
}
}
The for loop does not execute. Why?

Change condition, > to <:
...
for (int i = 0; i < 20; i++) // i < 20, not i > 20
...
In your original code you assign int i = 0 then check i > 20 get false and do not enter the loop at all

The following statement in your code:
for (int i = 0; i > 20; i++)
First assigns 0 to i then evaluates the condition i > 20 which is wrong, so the for block can not be executed.

Other people have pointed out the fact that the test should actually be "i < 20" rather than "i > 20) but just to make one other point: if all you're trying to do is write out all the even numbers, you can actually increment "i" by 2 every time - that way you never have to test to see if it's even (just write "i += 2" instead of "i++").

Cannot assign to 'writeline' because it is a 'method group' [closed]

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Closed 7 years ago.
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The below code is giving me error "Cannot assign to 'writeline' because it is a 'method group;" at every Console.Writeline statement. I am trying to find out why but I could not find anything to point me in right direction. Any help appreciated.
{
class FizzBuzz
{
static void Main(string[] args)
{
for (int i = 1; i <= 100; i++)
if ((i % 3 == 0) && (i % 5 == 0))
{
Console.WriteLine = "Fizzbuzz" ;
}
else if (i % 3 == 0)
{
Console.WriteLine = "Fizz";
}
else
(i % 5 == 0)
{
Console.WriteLine = "Buzz";
}
System.Console.ReadLine();
}
}
}

You need to set the string in parenthesis:
Console.WriteLine("This string goes to console.");
You tried to assign the method with a value, that is not possible. That works only with properties and fields.

how to separate numbers by asterisks c# [closed]

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Closed 8 years ago.
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I don't understand how to do this im new to programming but im sure its simple. help the code I have so far is:
I need the asterisks to be separating the numbers
for (int i = 0; i < 101; i++)
Console.WriteLine(i);
Console.WriteLine("********");
but the asterisks is only showing at the bottom

You should put the body of the loop into a scope:
for (int i = 0; i < 101; i++)
{
Console.WriteLine(i);
Console.WriteLine("********");
}
Otherwise only the following next command is interpreted as the body of the loop, equivalent to this:
for (int i = 0; i < 101; i++)
{
Console.WriteLine(i);
}
Console.WriteLine("********");

The way you have it is only doing the for loop on the first line. You need to put both lines into a 'block' using curly braces:
for (int i = 0; i < 101; i++)
{
Console.WriteLine(i);
Console.WriteLine("********");
}