> For the complete documentation index, see [llms.txt](https://www.csprinciples.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.csprinciples.com/25-26/session-17.md).

# Session 17

## Source Code

```lua
print("Session 17")

-- define main function
function main()
    print("Main Function")
    local done = false
    local choice = nil
    while not done do
        print("Menu")
        print("E1 - Example 1")
        print("Q - Quit")
        io.write("Choice: ")
        choice = io.read()
        if choice == "E1" then
            -- call Example 1 Function
            

        elseif choice == "E2" then
            -- call Example 2 Function
            

        elseif choice == "E3" then
            -- call Example 3 Function
            

        elseif choice == "E4" then
            -- call Example 4 Function
            

        elseif choice == "E5" then
            -- call Example 5 Function
            

        elseif choice == "E6" then
            -- call Example 6 Function
            

        elseif choice == "E7" then
            -- call Example 7 Function
            
            
        elseif choice == "E8" then
            -- call Example 8 Function
            
            
        elseif choice == "E9" then
            -- call Example 9 Function


        elseif choice == "Q" then
            done = true
        else
            print("Invalid Choice")
        end
    end
end

-- define Example 1 Function


-- define Example 2 Function


-- define Example 3 Function


-- define Example 4 Function


-- define Example 5 Function


-- define Example 6 Function


-- define Example 7 Function


-- define Example 8 Function


-- define Example 9 Function


-- call main function
main()
```

## s17problem1.lua

```lua
-- main function
function main()
    -- call problem1 function

end

-- problem1 function definition


-- call to main function
main()
```

## s17problem2.lua

```lua
-- main function
function main()
    -- call problem2 function

end

-- problem2 function definition


-- call to main function
main()
```

## s17problem3.lua

```lua
-- main function
function main()
    -- call problem3 function

end

-- problem3 function definition


-- call to main function
main()
```

## s17problem4.lua

```lua
-- main function
function main()
    -- call problem4 function

end

-- problem4 function definition


-- call to main function
main()
```

## s17problem5.lua

```lua
-- main function
function main()
    -- call problem5 function

end

-- problem5 function definition


-- call to main function
main()
```

## s17problem6.lua

```lua
-- main function
function main()
    -- call problem6 function

end

-- problem6 function definition


-- call to main function
main()
```

## s17problem7.lua

```lua
-- main function
function main()
    -- call problem7 function

end

-- problem7 function definition


-- call to main function
main()
```

## s17problem8.lua

```lua
-- main function
function main()
    -- call problem8 function

end

-- problem8 function definition


-- call to main function
main()
```

## s17problem9.lua

```lua
-- main function
function main()
    -- call problem9 function

end

-- problem9 function definition


-- call to main function
main()
```

## s17problem10.lua

```lua
-- main function
function main()
    -- call problem10 function

end

-- problem10 function definition


-- call to main function
main()
```

## s17problem11.lua

```lua
-- main function
function main()
    -- call problem11 function

end

-- problem11 function definition


-- call to main function
main()
```

## s17problem12.lua

```lua
-- main function
function main()
    -- call problem12 function

end

-- problem12 function definition


-- call to main function
main()
```

## Project 4

```lua
print("Project 4")
print("Name: ")

-- define main function
function main()
    print("Main Function")
    local done = false
    local choice = nil
    while not done do
        print("Menu")
        print("R - Restaurant Information")
        print("A - Appetizers")
        print("E - Entrees")
        print("D - Desserts")
        print("B - Beverages")
        print("P - Place Order")
        print("Q - Quit")
        io.write("Choice: ")
        choice = io.read()
        if choice == "R" then
            -- call Restaurant Information Function


        elseif choice == "A" then
            -- call Appetizers Function


        elseif choice == "E" then
            -- call Entrees Function


        elseif choice == "D" then
            -- call Desserts Function


        elseif choice == "B" then
            -- call Beverages Function


        elseif choice == "P" then
            -- call Place Order Function


        elseif choice == "Q" then
            print("Quitting!")
            done = true
        else
            print("Invalid Choice")
        end
    end
end

-- define Restaurant Information Function


-- define Appetizers Function


-- define Entrees Function


-- define Desserts Function


-- define Beverages Function


-- define Place Order Function


-- call main function
main()
```


---

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