Feb 20: throw and try-catch

Learning Objectives

After today's class, you should be able to:

• throw run-time exceptions with specific detail messages.
• Use try and catch blocks to handle run-time exceptions.
• Discuss when throwing and catching exceptions is useful.

Lesson Outline

HW4 Debrief [10 min]

• Solution available in Canvas Files
• Using null references in an array

Act07 [45 min]

• Activity 7: Exceptions
• Reading keyboard input with a Scanner

Mini Lecture [20 min]

• Example Diagram from last Thursday's class
• Draw a memory diagram with Card objects

Your To-Do List

By Friday but ideally tomorrow

• Do the Week 6 reading
• Take Quiz05 on Canvas

Before Thursday's class

• Read the HW 5 spec
• Download provided files

Memory Diagram

Here is the diagram I drew on the whiteboard: