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Why the below statement in Java prints "2 + 2 = 22" instead of "2 + 2 = 4"

Author Votes Δ
Pierre 10 +1.69
Ravindra Ranwala 5 +0.23
Carcigenicate 4 -1.04
St.Antario 1 -3.90
Last visited: Sep 15, 2018, 6:38:15 AM