ACM solution

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


class Mar18 {

    static int caseNum = 1;

    public static void main(String[] args) {

        System.out.println("Please input two strings. Type 'END' to quit.");
        Scanner in = new Scanner(System.in);
        String input1 = in.nextLine();
        if(input1.toLowerCase().equals("end")){
            System.out.println("Have a nice Day.");
        }
        String input2 = in.nextLine();
        char[] c1 = input1.toLowerCase().toCharArray();
        char[] c2 = input2.toLowerCase().toCharArray();
        Arrays.sort(c1);
        Arrays.sort(c2);
        if(Arrays.equals(c1, c2)){
            System.out.println("Case " +  caseNum + ": same.");
        }else{

            System.out.println("Case " +  caseNum + ": Different.");
        }
        caseNum++;
        main(null);
        in.close();

    }

}