Day 5 — Detecting Ping Success or Failure.

Today I implemented and debugged the logic needed to determine whether a real ping to a DNS server succeeds or fails. I learned how ProcessBuilder, waitFor(), and exit codes work together to interact with the operating system, and how they actually evaluate the result of a network test. I also strengthened my understanding of input validation, control flow, methods, and user inputs, including using if/else if/else logic and System.exit(0) terminating the program. I tested the program with both valid and invalid targets and confirmed that it can now identify successful and unsuccessful connections. I also updated my README to better reflect the project’s current development.

Next: Day 6 — extract the latency measurement in milliseconds from successful ping results.