I am a newb in Visual Basic, but i am trying to learn all i can because it is pretty fun to me . Thanks for your time and here are my questions.

Project: To make a program that will delete, and then create a file with text in it (But not with the .txt file name). This is to be able to change the hosts file with the click of a button.

Things i would like to implement/know:

I would like to know how to do many complicated things, please try to explain them to me as well as possible .

#1. I would like to know how to make a TextBox assigned to a variable (Such as make the text input as a variable that can be placed into a text file).
#2. Make it save the variables and presets after they make them. (Such as them typing in the text they want in the file and then clicking "save as preset 1" and it saving it as button1)
#3. Delete a file in a directory, and then create a file in the directory with a text that is a variable previously defined by user).


I know i am explaining this wierd, if you have any questions please ask them.