Please code in Visual Basic.

Form 1: Working with Loops - The first form will have two button click events: First Button Click Event: Using a Do Loop with a Sentinel value of -1 ask the user to type in the list of courses they have completed (ex: CIS115). As they enter the courses, display the courses in a listbox. Second Button Click Event: Once the course listbox has been populated, the user will select a course from the listbox that will be converted into a new string using the guidelines given below. This event must validate that a course has been selected from the listbox before the process of generating the new string coded name can be done. (Hint: see page 274.) If a course has been selected, that name should be read into the program and converted to 'code' as follows: - All letters are converted to lower case. - All vowels within the string should be removed. - Replace numbers should be converted as follows: - 1 will become an exclamation point (!) - 2 will become the letter z (lower case) - 3 will become the letter E (upper case) - 4&8 will become dollar signs (\$) - 5 will become the letter S (upper case) - 6&7 will become ampersands (\&) - 0 \& 9 will become letter o (lower case). Once the 'coded course' name has been created, it is to be displayed in the output textbox