SAMS Teach Yourself Perl in 24 Hours THIRD EDITION

Workshop

Quiz

1:	Given the following code, what's left in @A afterward: @A=qw(oats peas beans); shift @A; push @A, "barley"; pop; oats peas beans beans barley peas beans barley
2:	What does printf("%18.3f", $a) do? It prints a floating-point number that is 18 characters wide: 15 to the left and 3 to the right of the decimal point. It prints a floating-point number 18 characters to the left of the decimal, a decimal point, and then 3 more digits. It prints a floating-point number that is 18 characters wide, 14 to the left and 3 to the right of the decimal point.
3:	If tr/a-z/A-Z/ is run against a string, will tr/A-Z/a-z/ restore the string to its original form? Yes, of course Probably not

Answers

A1:	c. The shift removed oats, and the push added barley ...