How can a user enter data as many it was specified for??

I am writing a program that makes calculations on data entered by the user. First I ask the user how many inputs he/she wants. And my problem is how the user can enter as many input he/she asked for. How do I make the program ask for input more than once, before I do calculation on the entered data???
I am sorry if my english is hard to understand, but I hope this was understandable.

I think you should use a readInt() if you have such a method in your Keyboard class to ask for the numbers.
Then create a float array with that many elements, and use the for-loop you have shown:
for (...) {
  numbers[ i-1 ] = Keyboard.readFloat(); // numbers is a float array
  // if you let i go from 0 to i < tall, then you don't need to subtract 1 from i.
}

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