Allow user pick one size, you must have at least 3 sizes at different price for user to pick, for example, small $8, medium $12, and large $16
Allow user pick one kind of crusts, you must have at least 3 kinds of crusts at same price for user to pick
Allow user add any amounts of different toppings, you must have at least 4 different toppings for user to choose, you may charge additional $0.5 for each topping
After the pizza built, ask user how many this kind of pizza he/she wants order
The program displays price for one pizza, number of this pizza user is going to order, and the order total
Use your imagination to code this program and have fun