NC103 反转字符串

题目地址

思路一：

1. 将输入的字符串转为字符数组
2. 将字符数组中的各个值倒序赋值给一个新数组
3. 将新数组转为字符串

public String solve (String str) {
    char[] chars = str.toCharArray();
    char[] reverseChars = new char[chars.length];
    for (int i = 0; i < reverseChars.length; i++) {
        reverseChars[i] = chars[chars.length - i - 1];
    }
    return String.valueOf(reverseChars);
}