[RESOLVED][2005] 1 textbox multiple inputs

I'm creating a program, 1 textbox, and 2 buttons,and a listbox, so everytime I enter a number into the textbox i have to click a button, then another buton computes the average, the problem i'm having is imputing multiple numbers in one textbox, eneter number, press button, txtbox clears, and so one, i need to do that 3 times

Resolved by using multiple variables.

Does the listbox store the numbers?

Not that it's so important but create an array or use a List(of Integer) or whatever variable is appropriate.

Assign the current number in the textbox to the current index and then clear the textbox.

What have you done so far?