Java LeetCode练习

        3216. 交换后字典序最小的字符串

package JavaExercise;public class Exercise {public static void main(String[] args) {String s = "45320";Solution solution = new Solution();System.out.println(solution.getSmallestString(s));}
}class Solution {public String getSmallestString(String s) {for (int i = 0; i < s.length(); i++) {char c = s.charAt(i);int number1 = c - '0';if (i == s.length() - 1) {return s;}c = s.charAt(i + 1);int number2 = c - '0';if (((number1 % 2 == 0 && number2 % 2 == 0) || (number1 % 2 != 0 && number2 % 2 != 0)) && number1 > number2) {s = swap(i, s);return s;}}return s;}public String swap(int i, String s) {byte[] bytes = s.getBytes();byte temp = bytes[i + 1];bytes[i + 1] = bytes[i];bytes[i] = temp;return new String(bytes);}
}