This is solution of IP Addr Counter test assignment.
Build:
javac -d build/class src/*.java
jar cfm build/ip_count.jar manifest/MANIFEST.MF -C build/class .Run:
java -jar build/ip_count.jar <path/to/file>Result of run on example file, measured with time utility:
IP count is: 1,000,000,000
real 5m15,076s
user 4m43,477s
sys 0m31,540s