Update.java

import java.util.Scanner;

public class Demo {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);

        String word1 = input.next();
        String word2 = input.next();
        try {
            for (int i = 0; i < word1.length(); i++) {
                for (int j = i; j < word2.length(); j++) {
                    if((word1.charAt(i) == word1.charAt(j) && word2.charAt(i) != word2.charAt(j)) ||
                            (word1.charAt(i) != word1.charAt(j) && word2.charAt(i) == word2.charAt(j))
                            ) {
                        System.out.println(false);
                        return;
                    }
                }
            }
        } catch (Exception ex) {
            System.out.println("Incorrect length");
        }


        System.out.printf("true");
    }
}