_1657.java

package com.fishercoder.solutions;

import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;

public class _1657 {
    public static class Solution1 {
        public boolean closeStrings(String word1, String word2) {
            int[] counts1 = new int[26];
            int[] counts2 = new int[26];
            Set<Character> set1 = new HashSet<>();
            Set<Character> set2 = new HashSet<>();
            for (char c : word1.toCharArray()) {
                counts1[c - 'a']++;
                set1.add(c);
            }
            Arrays.sort(counts1);
            for (char c : word2.toCharArray()) {
                counts2[c - 'a']++;
                set2.add(c);
            }
            Arrays.sort(counts2);
            return set1.equals(set2) && Arrays.equals(counts1, counts2);
        }

    }
}