Question

so my professor has assigned us a project where we have to take in commands from a text file and use them to drive the flow of our program. These commands such as- Takeoff, land, load cargo, unload cargo, etc.- are meant to simulate an airplane-like object.

Sometimes these commands don’t make sense to execute, like loading cargo while a plane is in-flight. Therefore, to prevent something like that from happening we had to code in our own exception classes i.e. “If the plane is ordered to load cargo while in flight, throw InvalidActionException”

My question is: how can I continue to read-in commands from the text file after exceptions have been thrown (seeing as how once they are thrown, the program cannot progress further

Here’s an outline of what I want to do:

    Scanner input = new Scanner(new FileInputStream("stuff1.txt"));

    while(input.hasNextLine())
    {
        try 
        {
             //execute commands by reading them using input.nextLine()
        }
        catch()
        {
            //catch any exceptions and ignore them... continue to read
           //the file for more commands
        }
    }

I would appreciate any help. Thanks.

Answer 1

Catch appropriate exception and flow will automatically reach while loop condition.

After cathing exception nothing extra to be done to continue the program.