Section 3 Exception and assertion Oracle Java Programming

Section 3 Exception and assertion

                (Answer all questions in this section)

1.            What is the definition of a logic error?    Mark for Review

                Wrong syntax that will be caught at compile time.

                Bugs in code that make your program run different than expected (*)

                Computer malfunction that makes your code run incorrectly.

                Something that causes your computer to crash.

2.            Is this the correct syntax for catching an exception?

Try(inputStream = "missingfile.txt"); Catch(exception e);

True or false? 

                True

                False (*)

3.            Multiple catch statements can be used for a single try statement.

True or false?    Mark for Review

                True (*)

                False

4.            When will a finally statement be executed?         Mark for Review

                Only if an exception is thrown.

                Only if an exception is not thrown.

                Always; no matter if an exception is thrown or not. (*)

                Only if multiple exceptions are caught and thrown.

                Never; it is there for visual purposes.

5.            What is one step you must do to create your own exception?      Mark for Review

                Create a new class that extends Exception. (*)

                Create a new class that implements Exception.

                Declare the primitive data type Exception.

                Exceptions cannot be created. They are only built in to Java.

6.            What is special about including a resource in a try statement?    Mark for Review

                                                (Choose all correct answers)      

                The resources will auto-close. (*)

                The program will fail if the resource does not open.

                An error will be thrown if the resources does not open. (*)

7.            Assertions are optional ways to catch logic errors in code.

True or false?    Mark for Review

                True (*)

                False

8.            When are control flow invariants used? Mark for Review

                To test run time errors in code.

                To test compilation errors in your code.

                To test specific variable values of your code.

                To test the correct flow of your code. (*)