• File size measurements show the distribution of size of files.
• Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
• It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.

• There are 58 files with 4,224 lines of code.
• 0 very long files (0 lines of code)
• 1 long files (528 lines of code)
• 1 medium size files (203 lines of codeclsfd_ftr_w_mp_ins)
• 10 small files (1,289 lines of code)
• 46 very small files (2,204 lines of code)

There are 14 files with lines longer than 120 characters. In total, there are 23 long lines.

File	# lines	# units	# long lines
GetBlock.java in src/main/java/software/amazon/qldb/tutorial	117	5	6
ExportJournal.java in src/main/java/software/amazon/qldb/tutorial	203	8	3
JournalBlock.java in src/main/java/software/amazon/qldb/tutorial/qldb	186	10	2
StreamJournal.java in src/main/java/software/amazon/qldb/tutorial/streams	528	33	2
RevisionMetadata.java in src/main/java/software/amazon/qldb/tutorial/qldb	85	9	1
TransferVehicleOwnership.java in src/main/java/software/amazon/qldb/tutorial	84	5	1
JournalS3ExportReader.java in src/main/java/software/amazon/qldb/tutorial	108	5	1
Verifier.java in src/main/java/software/amazon/qldb/tutorial	119	5	1
IonLocalDateSerializer.java in src/main/java/software/amazon/qldb/tutorial/model	18	2	1
SampleData.java in src/main/java/software/amazon/qldb/tutorial/model	136	10	1
BlockSummaryRecord.java in src/main/java/software/amazon/qldb/tutorial/model/streams	133	9	1
RevisionDetailsRecord.java in src/main/java/software/amazon/qldb/tutorial/model/streams	44	6	1
RenewDriversLicense.java in src/main/java/software/amazon/qldb/tutorial	80	6	1
ValidateQldbHashChain.java in src/main/java/software/amazon/qldb/tutorial	67	4	1