Convert a List of Characters into a String

Convert a list of characters into a string

Use the join method of the empty string to join all of the strings together with the empty string in between, like so:

>>> a = ['a', 'b', 'c', 'd']
>>> ''.join(a)
'abcd'

C#: Converting List of Chars to String

One option for this is to use the string constructor:

var myString = new string(array1.ToArray());

convert list to string in python

Join doesn’t work the way you think it works.

What join does:

",".join(["a", "b", "c"])

Gives "a,b,c". Essentially it creates a string by elements from a list with what you provided before .join, in this case it’s a comma.

So what you want can be achieved by

",".join(str(x) for x in l)

The inside expression changes the integers in list l into strings before joining them by comma.

Convert from a list of characters ListCharacter to an array of chars char[]

TL;DR

You can do it (for instance) with:

list.stream().map(Object::toString).collect(Collectors.joining()).toCharArray();

However, if you want to have it as a String just do directly:

list.stream().map(Object::toString).collect(Collectors.joining());

Detailed Answer

I see that we can convert from List (...) but similar functionality is not
available for char as we do not have a char equivalent for IntStream?

Yes, because you can combine the inbuilt methods mapToInt and toArray to get the conversion for free. And the same does not apply for the type char. Nonetheless, you can still use the generic map, convert to a String and then again to array of chars:

  list.stream().map(Object::toString).collect(Collectors.joining()).toCharArray();

I want this so that later I can create a String using String(chars).
Do we have any shortcuts using Stream?

Why not then do directly?!:

String collect = list.stream()
                     .map(String::valueOf)
                     .collect(Collectors.joining());

Running example:

public static void main(String[] args) {
    List<Character> list = List.of('H', 'e','l','l','o');
    String collect = list.stream().map(String::valueOf).collect(Collectors.joining());
    System.out.println(collect);
}

Output

Hello

How do I convert string characters into a list?

>>> x = 'abc'
>>> list(x)
['a', 'b', 'c']

Not sure what you are trying to do, but you can access individual characters from a string itself:

>>> x = 'abc'
>>> x[1]
'b'

Scheme: How to convert a charlist to a string

Your problem is with delete. For every char that is not a space you do convertToString with the result. Thus with the string "abc" it will do

(convertToString (cons #\a (convertToString (cons #\b (convertToString (cons #\c '()))))))

Hint.. You need to do convertToString (funny wrapper for list->string) with the result in deleteCh instead of every subresult.

How to convert list to string and how to save for loop result into variable in python?

''.join(list_of_strings)

best advise I ever got..

for your case:

string = "3,9,13,4,42"

lista = [int(i) for i in string.split(',')]
list_of_strings = []

for i in lista:
   list_of_strings.append(str(i**2))  # appending each value as a string in list 
string = ",".join(list_of_strings)  # the "," will add comma between each values in the list.

How to convert Listchar to Liststring in c#?

Just iterate over the collection of characters, and convert each to a string:

var result = input.ToCharArray().Select(c => c.ToString()).ToList();

Or shorter (and more efficient, since we're not creating an extra array in between):

var result = input.Select(c => c.ToString()).ToList();

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