public int getPartNumber() {
        return partNumber;
    }
Returns the part number describing this part's position relative to the
other parts in the multipart upload. Part number must be between 1 and
10,000 (inclusive).

@return the part number describing this part's position relative to the
        other parts in the multipart upload. Part number must be between
        1 and 10,000 (inclusive).
aws-java-sdk-s3/src/main/java/com/amazonaws/services/s3/model/UploadPartRequest.java