Sort Numbers Stored as String

Sort Numbers Stored as String

  June 24, 2017    

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Idea was to use comparator as lambda expression and check if length of two strings are same then return small one else return smallest string

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        String[] unsorted = new String[n];
        for(int unsorted_i=0; unsorted_i < n; unsorted_i++){
            unsorted[unsorted_i] = in.next();
        }
        Arrays.sort(unsorted,(String a,String b)->
                    {
                         if(a.length()==b.length())
                        {
                            return a.compareTo(b);
                        }
                          return a.length() - b.length();  
                    });
        for(String str:unsorted)
        {
            System.out.println(str);
        }
        // your code goes here
    }
}