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@noriyotcp

[Java] if文でのEmpty Statement

http://medium.com/on-coding/3fcb28e30ef3
を参考に

if (done)
; // Empty statement
else
System.out.println("Not done yet.");

boolean done = true;
の場合はなにもせず、
boolean done = false;
の場合は"Not done yet"をプリント

だがー? それよりも・・・

if (!done)
    System.out.println("Not done yet.");

まあ、trueのときは何もしないので、falseのときの処理だけ書いてあげれば良い、ということでおk?

コメントでのご指摘、ありがとうございますー。

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