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Getting individual string length in an array [closed]

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I am trying to write a program which does the following:
There is a method called lengthOffTheWords. It receives an array of strings, and returns an array of numbers which represent the length of each individual string.
Ex: For the following input
{"I", "know", "a" , "friend"} the method returns {1,4,1,6} .
{"yes"} the method returns {3}.
{"me", "too"} the method returns {2,3}.
I would like to see an example of how to write it.

I would do something like this:
public int[] LengthOffTheWords(string[] array)
{
return array.Select(item => item.Length).ToArray();
}
I did not test this but it should do what you want.

int[] GetLengths(string[] array)
{
int[] structure = new int[array.Length];
for(int i = 0;i < array.Length;i++)
{
int length = array[i].Length;
structure[i] = length;
}
return structure;
}

Convert string to generic type c# (Convert string to T) [closed]

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I have a method that needs to convert a string to the generic type:
T GetValue<T>(string name)
{
string item = getstuff(name);
return item converted to T // ????????
}
T could be int or date.

you can use Convert.ChangeType
T GetValue<T>(string name)
{
string item = getstuff(name);
return (T)Convert.ChangeType(item, typeof(T));
}
if you need to limit input types only for int and DateTime, add condition like below
if (typeof(T) != typeof(int) && typeof(T) != typeof(DateTime))
{
// do something with other types
}

How compare float and ArrayList object in c# [closed]

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I want to compare the array element with number.
ArrayList arr_obj = new ArrayList();
double a=1;
arr_obj.Add(1);
arr_obj.Add(2);
for(i = 0; i < arr_obj.Count; i++)
{
if (arr_obj[i] == a)
{
Debug.Log("ext");
}
}
This code does not work. Any ideas?

Yo are comparing an object to a double which won't compile. You will either have to store doubles in the ArrayList (as below) or first cast the values to int and then to double Ie (double)(int)arr_obj[i] because you can only unbox to the exact same type as you boxed (in your case that's int)
If you wish to stick to an ArrayList, not recommended, change to
ArrayList arr_obj = new ArrayList();
double a=1.0;
arr_obj.Add(1.0);
arr_obj.Add(2.0);
for(i=0;i<arr_obj.Count;i++){
if ((double)arr_obj[i]==a) {
Debug.Log("ext");
}
}
or you could use a List<double>
var list = new List<double>{1.0,2.0};
var a=1.0;
for(i=0;i<list.Count;i++){
if (list[i]==a) {
Debug.Log("ext");
}
}

You can convert it with Convert.ToDouble(arr_obj[i])

You have to cast the ArrayList to double:
(double)arr_obj[i]
ArrayList can contain any type beacause it is a list of objects. So, if you are going to cast it like this, you need to be sure that each array list is of type double by only putting doubles in the array list, or check it before casting like:
if (arr_obj[i] is double)
{
if ((double)arr_obj[i] == a)
{
Console.WriteLine(arr_obj[i].ToString() + " is double");
}
}

2D Array get number of not null rows [closed]

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I'm stuck in a problem.
I have a class :
public class CustomerViewModel
{
public string Name;
public string[][] values;
public bool[] flag;
}
I wish to get count of rows in values[][] where row !=null

Assuming you already have:
var vm = new CustomerViewModel();
And have populated the values array, then..
For a count of non-null rows try:
var count = vm.values.Count(i => i != null);
Or for all rows where values[row][0] is not null:
var count = vm.values.Count(i => i != null && i.Length > 0 && i[0] != null);

Take the info from json file c# [closed]

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I have Json file in string (for example):
#{
"Url": "http://site.com/?q=windows8"
}
How can i take the information after ?q= on c# (windows 8). Sorry for my English.

You can use the querystring.
in Codebehind file
public String q
{
get
{
if (Request.QueryString["q"] == null)
return String.Empty;
return Convert.ToString(Request.QueryString["q"]);
}
}
then use the line below to get the value
var index = ('<%=q%>');

You can do simply this :
string s = "myURL/?q=windows8";
// Loop through all instances of ?q=
int i = 0;
while ((i = s.IndexOf("?q=", i)) != -1)
{
// Print out the substring. Here : windows8
Console.WriteLine(s.Substring(i));
// Increment the index.
i++;
}