Difference between for and foreach loop

Question

1.67/5 (4 votes)

See more:

What is the difference between for and foreach loop. Which one is more convenient to use? Can you please explain it with example.

Posted 19-Sep-13 0:32am

Sumon562

Add a Solution

Comments

[no name] 19-Sep-13 6:39am

Why are you unable to simply read the documentation?

5 solutions

Solution 1

Please refer the link

http://www.c-sharpcorner.com/interviews/answer/2147/[^]
http://stackoverflow.com/questions/10929586/what-is-the-difference-between-for-and-foreach[^]

Posted 19-Sep-13 0:36am

manikjeyam

Solution 3

visit Here..

FOREACH Vs. FOR (C#)[^]

Posted 19-Sep-13 0:43am

Rakesh Meel

Solution 4

There is an article in CodeProject the Author of this article explains the difference between the Foreach and for loop. It might be also more helpful to get the clear picture of what is Foreach and for in detail.

FOREACH Vs. FOR (C#)[^]

Posted 19-Sep-13 0:46am

Thomas ktg

Solution 5

Simple difference is :
in For each : you can print the key values.. You can use the key values of an array.
But in For : You cannot use or print the key values of an array

Posted 7-Dec-14 6:32am

Deep Nirmal

Comments

CHill60 7-Dec-14 12:55pm

Wrong - you mean indices, not "key values". The question is over a year old and already adequately answered

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Accepted Answer · 2013-09-19T00:41:00

It depends on what you are doing, and what you need.
If you are iterating through a collection of items, and do not care about the index values then foreach is more convenient, easier to write and safer: you can't get the number of items wrong.
If you need to process every second item in a collection for example, or process them ion the reverse order, then a for loop is the only practical way.

The biggest differences are that a foreach loop processes an instance of each element in a collection in turn, while a for loop can work with any data and is not restricted to collection elements alone. This means that a for loop can modify a collection - which is illegal and will cause an error in a foreach loop.

For more detail, see MSDN : foreach[^] and MSDN: for[^]