使用第一个字母对字符串进行排序

Question

I have following string

string strings = "\"Johnson\", \"Williams\", \"Brown\", \"Jones\"";

What I am trying to do is to sort this string alphabetically like this:

• Brown
• Johnson Jones
• Williams

I have no idea what to do and how to solve this. What should I do with it

Answer 1

You can try querying the given string:

• Split on ',' to have separated words
• Get rid of spaces and quotation marks with a help of Trim() .
• Order the word s
• As I can see you want to Group words by the 1st letters
• Finally, lets materialize the result as an array

Code:

  string strings = "\"Johnson\", \"Williams\", \"Brown\", \"Jones\"";

  string[] result = strings
    .Split(',')
    .Select(word => word.Trim(' ', '"'))
    .Where(word => !string.IsNullOrEmpty(word))
    .OrderBy(word => word)
    .GroupBy(word => word[0])
    .Select(group => string.Join(" ", group))
    .ToArray();

If you want to obtain string instead of array, put Join :

  string myString = string.Join(" ", result);

Let's have a look:

  Console.Write(string.Join(Environment.NewLine, result));

Output:

Brown
Johnson Jones
Will

Answer 2

Approach with Split and Join

string strings = "\"Johnson\", \"Williams\", \"Brown\", \"Jones\"";
string result = string.Join(", ", strings.Split().Select(x => x.Trim(',')).OrderBy(x => x));

Answer 3

Assuming you are using a list with multiple strings, we can use a bubble sorting algorithm to sort the list.

Loop through the list swapping positions if the second string has a lower letter than the first one. Loop until the list is fully sorted.