What's the deal with having to put in all inputs at the beginning of the run?

Question

What's the deal with having to put in all inputs at the beginning of the run?
it ruins the ability to use loops effectively unless you user read the code and can antiscipate all the answers to the prompts before they are given.

Answer 1

Care to give an example, as I cannot really figure out what you are trying to say? :)

Answer 2

I am using an Android phone to follow the password generator challenge that is trending. one of the perameters of the challenge is that the program asks the user for the length of the pasword to be generated....so...I have done this....as well as having a question at the end that will stop or continue the process of password generating. anyway....when I am in the code playground and press the "run" button, I get a pop up prompt that says
"looks like your program needs input"
"split multiple input into separate lines"

my keyboard comes up and I am supposed to ender inputs for all the possible times that I may be asked for one of I want the program to run properly.