line property
Two-letter abbreviation for the line (e.g.: RD, BL, YL, OR, GR, or SV).
May also be blank for trains with no passengers.
Implementation
final String line;
Two-letter abbreviation for the line (e.g.: RD, BL, YL, OR, GR, or SV).
May also be blank for trains with no passengers.
final String line;