math practise

1.

import java.util.Arrays;
import java.util.Scanner;

public class arrays {
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        String str=sc.next();
        char[] charArray=str.toCharArray();
        Arrays.sort(charArray);
        for(int i=charArray.length-1;i>=0;i--){
            System.out.print(charArray[i]+"	");
        }

    }
}