| Errors are a normal part of programming. |
| Some of these errors are flaws in a program's basic design or implementation--these are called bugs. |
| Other types of errors are not really bugs; rather, they are the result of situations like low memory or invalid filenames. |
| The way we handle the second type of error determines whether they become bugs. |
| Java's exception-handling mechanism lets us handle errors without forcing us to spend most of our energy worrying about them. |
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