如何在java中替换Char数组中的char序列而不将其转换为String

public class CharArrayReplacement {
    public static char[] replaceCharSequence(char[] original, char[] target, char[] replacement) {
        int originalLength = original.length;
        int targetLength = target.length;
        int replacementLength = replacement.length;
        int count = 0;

        // 计算需要替换的字符序列出现的次数
        for (int i = 0; i <= originalLength - targetLength; i++) {
            boolean match = true;
            for (int j = 0; j < targetLength; j++) {
                if (original[i + j] != target[j]) {
                    match = false;
                    break;
                }
            }
            if (match) {
                count++;
                i += targetLength - 1;
            }
        }

        // 计算替换后的字符数组长度
        int newLength = originalLength + count * (replacementLength - targetLength);
        char[] result = new char[newLength];
        int index = 0;

        // 替换字符序列
        for (int i = 0; i <= originalLength - targetLength; i++) {
            boolean match = true;
            for (int j = 0; j < targetLength; j++) {
                if (original[i + j] != target[j]) {
                    match = false;
                    break;
                }
            }
            if (match) {
                for (int j = 0; j < replacementLength; j++) {
                    result[index++] = replacement[j];
                }
                i += targetLength - 1;
            } else {
                result[index++] = original[i];
            }
        }

        // 复制剩余的字符
        for (int i = originalLength - targetLength + 1; i < originalLength; i++) {
            result[index++] = original[i];
        }

        return result;
    }

    public static void main(String[] args) {
        char[] original = {'H', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd'};
        char[] target = {'o', ' ', 'w', 'o', 'r', 'l', 'd'};
        char[] replacement = {'J', 'a', 'v', 'a'};

        char[] result = replaceCharSequence(original, target, replacement);
        System.out.println(result);
    }
}