Sort the String Java

PROGRAM TO PRINT THE CHARACTERS OF A STRING IN SORTED ORDER

public class SortString{

    static final int MAX_CHAR = 26;

  

    // function to print string in sorted order

    static void sortString(String str) {

  

        // Hash array to keep count of characters.

        int letters[] = new int[MAX_CHAR];

  

        // Traverse string and increment

        // count of characters

        for (char x : str.toCharArray()) {

  

            // 'a'-'a' will be 0, 'b'-'a' will be 1,

            // so for location of character in count

            // array we will do str[i]-'a'.

            letters[x - 'a']++;

        }

  

        // Traverse the hash array and print

        // characters

        for (int i = 0; i < MAX_CHAR; i++) {

            for (int j = 0; j < letters[i]; j++) {

                System.out.print((char) (i + 'a'));

            }

        }

    }

  

    // Driver program to test above function

    public static void main(String[] args) {

        sortString("transgeek");

    }

}

OUTPUT

aeegknrst

CREDITS: https://www.geeksforgeeks.org/sort-string-characters/