Can you help ? What is there wrong?

Question

https://code.sololearn.com/cg5S9E2zgyAC/?ref=app

Answer 1

Yes you can.

https://code.sololearn.com/ce9xvKovazSN

I did almost nothing to your metod.
Just added a foreach- loop in Main method and the code is working.
ok and removed some of my debug-statements

ok
(0 < j) should be (0 <= j)

Answer 2

I like to help you but you need to answer my question.

Is "54.97.94.64" valid input ?

Answer 3

Thanks. Read my comments below.

Change this line : foreach (var word in ipv4)

ipv4 is the orginal not splitted string, this foreach loop loops through every single character of the string

to : foreach (var word in words)

Change this line :
if (word.GetType() == typeof(int) && (0 < i) && (i < 256))
to :
i.GetType() == typeof(int) && (0 < i) && (i < 256))

word is of type var,
but when initialized in the " foreach (var word in words)"
words is of type string[] so word is a string

Ultimately change the line to this
int j;
if (int.TryParse(word, out j) && (0 < i) && (i < 256)) // but you are looking for this

TryParse tries to convert the first parameter to a int. If it does not succeed TryParse returns false. If true the converted value is set in the second parameter ("j")
https://www.dotnetperls.com/parse

https://code.sololearn.com/cAMBE9btPL5B

You did a good job, just made some beginner mistakes.

Answer 4

thenk you ,you help my much.

Answer 5

int i=Convert.Toint(word );
should be
int i=Convert.ToInt32(word );

And I did comment out
Console.ReadKey();
Because you do not need it in the playground.

Answer 6

Metod returns the value false
so the output that is printed is false

Please elaborate more what is the output you expected ?

Answer 7

i wait you ,help please.
https://code.sololearn.com/cg5S9E2zgyAC/?ref=app

Answer 8

yes

Answer 9

your are welcome

Answer 10

realy i wont write thishttps://www.sololearn.com/learn/4601/?ref=app

Answer 11

I chenged but no result.

Answer 12

Should the code return True ?
Are you getting "No output" as result ?

Answer 13

No,i get false.