[Solved] What will this Ruby code print? pid = fork do puts 'Child' exit end puts 'Parent' Process.wait(pid) — Ans: Parent\nChild | Ruby

Ruby - Concurrent Programming

What will this Ruby code print?

pid = fork do
  puts 'Child'
  exit
end
puts 'Parent'
Process.wait(pid)

AParent\nChild

BChild\nParent

CParent only

DChild only

Step-by-Step Solution

Solution:

Step 1: Analyze child process code
The child prints 'Child' then calls exit to end immediately.
Step 2: Analyze parent process code
The parent prints 'Parent' immediately after fork, then waits for child to finish.
Final Answer:
Parent\nChild -> Option A
Quick Check:
Parent prints first, then child prints after wait [OK]

Quick Trick: Child exits after printing; parent prints after waiting [OK]

Common Mistakes:

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