How to sort string Array based on Number?

Question

I have a problem statement given below;

inputArray = {"rajesh|51|32|asd", "nitin|71|27|asd", "test|11|30|asd"}

It is a input array and I need to sort this Sting Array[] in ascending order based on the number next to Name in each string, So the returned output Array should like like this;

output =  {"test|11|30|asd", "rajesh|51|32|asd" ,"nitin|71|27|asd"}

I tried below code but I am not able to write the complete code as I am stuck at some point, What should I use to get the desired sorted output Array?

int sort = 0;
foreach(string s in inputArray)
{
  string[] foo = s.split("|");
  
  int orderNum = Convert.ToInt32(foo[1])
  
  if(sort<orderNum)
    sort = orderNum; 
  //stuck here..
}

Mario Vernari · Accepted Answer · 2021-05-30 08:38:01Z

2

Just use Linq:

    //input array
    var input = new string[]  {
        "test|11|30|asd", 
        "rajesh|51|32|asd",
        "nitin|71|27|asd"
    };

    //sorter
    var output = input.OrderBy(s => int.Parse(s.Split('|')[1]));

    //dump the resulting list
    foreach (string s in output) {
        Console.WriteLine(s);
    }

answered May 30, 2021 at 8:38

Mario Vernari

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6 Comments

Fabjan Over a year ago

You're right, I thought the problem is not only sorting :) This is the correct solution unless we don't know something

Mario Vernari Over a year ago

@Fabjan no prob, I re-read the question in order to have misunderstood something!

Rahul Nagrale Over a year ago

what if we do not want to use Linq?

Fabjan Over a year ago

Then I guess you would have to implement IComparer interface and use Array.Sort or even write your own sorting algorithm.

Mario Vernari Over a year ago

@RahulNagrale Fabjan is right, but why not using it? I don't see any valid reason to avoid it.

|

Charlieface · Accepted Answer · 2021-05-30 09:59:53Z

1

If you want to sort in place, you should to use the Array.Sort function

Array.Sort(inputArray, (s1, s2) =>
    int.Parse(s1.split("|")[1].CompareTo(int.Parse(s2.split("|")[1])
);

answered May 30, 2021 at 9:59

Charlieface

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