Object-Oriented Programming, unit: Exception Handling and Memory Management. Core concepts, terminology, and worked-example cues a college student meets for this unit, building on prior units without repeating them. Front: a term, concept, or short problem cue. Back: the definition, explanation, or answer.
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- What is exception handling?
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A mechanism for responding to and managing runtime errors in a controlled way- What is an exception?
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An object representing an error or unexpected event that disrupts normal program flow- What does a 'try' block do?
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Contains code that might throw an exception during execution- What does a 'catch' block do?
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Handles a specific type of exception thrown in the corresponding try block- What does a 'finally' block do?
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Executes cleanup code regardless of whether an exception was thrown or caught- What is throwing an exception?
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Signaling that an error has occurred by creating and raising an exception object- What is a checked exception?
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An exception that must be explicitly caught or declared, enforced at compile time- What is an unchecked exception?
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An exception not required to be caught or declared, typically representing programming errors- What is exception propagation?
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An uncaught exception passing up through calling methods until it is handled or crashes the program- What is a custom exception class used for?
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Representing application-specific error conditions with meaningful names and information- What is memory management, in OOP languages?
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The process of allocating and freeing memory used by objects during a program's execution- What is garbage collection?
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An automatic process that reclaims memory used by objects no longer referenced by a program- What is a memory leak?
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Memory that is no longer needed but not released, gradually exhausting available resources- What is manual memory management?
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A model where the programmer explicitly allocates and frees memory, as in C- What is a reference count, in some garbage collection schemes?
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A tracked number of references to an object, used to determine when it can be freed
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