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quiz1-example-soln-fall11

quiz1-example-soln-fall11 - CMSC330 Fall 2011 Example...

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CMSC330 Fall 2011 Example Quiz #1 Solutions 1. (4 pts) Describe a benefit of using implicit declarations in Ruby. Reduce programming effort. 2. (12 pts) What is the output (if any) of the following Ruby programs? Write FAIL if code does not execute. a. (3 pts) puts “Win” if 1 < 0 # Output = The Future puts “The” if 0 < 1 if 0 then puts “Future” end b. (3 pts) a = [5,”foo”, 2.1] # Output = Found foo puts “Found #{x[1]}” c. (3 pts) a = { } # Output = nil a[“foo”] = 2
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