Caclulate new size for dynamic array in Java

dynamicArray.java

private Integer newSize(Integer currentSize, Integer inputSize) {
    if (currentSize > inputSize) {
        return currentSize * 2;
    } else if (currentSize < inputSize) {
        return (inputSize % currentSize == 0) ? (currentSize + inputSize) : (currentSize + inputSize + 1);
    } else {
        return currentSize + inputSize;
    }
}