第143題

Given:
System.out.printf("Pi is approximately %f and E is approximately %b, Math.PI, Math.E);
Place the values where they would appear in the output.

答案：

Pi is approximately 3.141593

and E is approximately true

參考：10-2 Console類別、11-1 數字類型

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%f 格式化 Math.PI , float

%b 格式化 Math.E , 除非是布林值的 false, 不然就是true.