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Java

Posted by iftekhar uddin
iftekhar uddin
4,194 Points

Why is the IOException used?

I'm kind of confused in the do loop. Since the do loop uses "default" in order to say "you didn't put in one of the choices we wanted" what is the IOException used for? Is it just for any data that isn't even a character array?

sorry if this is a really simple minded question.

btw this is in the java track where we just made the karaoke machine in efficiency i believe.

1 Answer

Zuhayr Elahi
Zuhayr Elahi
2,582 Points

In general you have an IOException if that block of code is handling inputs and outputs. So if you are reading from a file or writing from a file. In general, the following cases are when there is a need to catch an IOException:

  1. You are reading from or writing to a file
  2. In cases where the same file is being used by multiple resources
  3. The file does not exist

I found a resource on the Oracle website that might help better understand when an IOException needs to be handled. https://docs.oracle.com/javase/tutorial/essential/exceptions/putItTogether.html

Let me know if I could help more.

iftekhar uddin
iftekhar uddin
4,194 Points

Thanks =)