比较两个char数组并创建不匹配的值的索引的Int数组

public class CharArrayComparator {
    public static int[] findMismatchIndices(char[] arr1, char[] arr2) {
        if (arr1.length != arr2.length) {
            throw new IllegalArgumentException("数组长度不一致");
        }
        
        int[] mismatchIndices = new int[arr1.length];
        int index = 0;
        
        for (int i = 0; i < arr1.length; i++) {
            if (arr1[i] != arr2[i]) {
                mismatchIndices[index++] = i;
            }
        }
        
        return Arrays.copyOf(mismatchIndices, index);
    }
}