Checked and Unchecked Exceptions

• Two types of exceptions:
  • Checked
    • The compiler checks that you don't ignore them
    • Due to external circumstances that the programmer cannot prevent
    • Majority occur when dealing with input and output
    • For example, IOException
  • Unchecked:
    • Extend the class RuntimeException or Error
    • They are the programmer's fault
    • Examples of runtime exceptions:

      NumberFormatException
      IllegalArgumentException
      NullPointerException

    • Example of error:

      OutOfMemoryError