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GregBrannon is exactly right. I was pointing out what is obvious in the code that explains the reason the program output is unaffected by your input. It looked rather strange to me at that time why...

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fallingTime = keyboard.nextDouble();

for(int i = 1; i <=10; i++)
System.out.println(num.format(fallingDistance(i)) + " meters");
}
public static...