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Answers and rating deltas for

what does the "?" and ":" sign mean in a line of java code?

Author Votes Δ
mc2 2 +4.00
Yogendra Singh 1 +0.61
kosa 1 +0.39
Rohit Jain 0 -0.83
Minion91 0 -1.69
CodeChimp 0 -1.74
mat 0 -1.93
Last visited: Sep 14, 2014, 5:07:29 AM