Handling Exceptions Labs

The purpose of this lab is to handle or declare exceptions, and call methods which every exception has.

com.example.exceptions.labs.ExceptionsLab

  1. Run ExceptionsLab.java and carefully examine the output, finding where each line of output was produced. Now, in method1, uncomment the call to method2. Does the code compile?

Change the definition of method1 so that it declares that it throws Exception. Is this enough to compile the class?

Add throws Exception declarations to methods until you can compile an run ExceptionsLab.java.

(Solution: com.example.exceptions.solutions.ExceptionsLab)

  1. In run, put the call to method1 in a try block. In the catch block, print a message saying that the exception was caught.

Which methods can now remove their throws declarations?

Which methods now complete normally?

(Solution: com.example.exceptions.solutions.ExceptionsLab2)

  1. In the catch block, add statements to print:
  2. The exception's message.
  3. The exception object as a String.
  4. The exception's stack trace.

(Solution: com.example.exceptions.solutions.ExceptionsLab3)

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