try catch finally
时间: 2023-06-23 13:51:00 浏览: 74
try-catch-finally捕获异常
`try`, `catch`, and `finally` are keywords in many programming languages, including Java and C++.
`try` is used to define a block of code that may throw an exception.
`catch` is used to define a block of code that will be executed if an exception is thrown in the corresponding `try` block. It specifies the type of exception to catch and provides a variable to reference the caught exception.
`finally` is used to define a block of code that will always be executed, regardless of whether or not an exception is thrown in the corresponding `try` block. This block is typically used for cleanup tasks, such as closing open resources.
Here is an example of how these keywords can be used together in Java:
```
try {
// code that may throw an exception
} catch (ExceptionType e) {
// code to handle the exception
} finally {
// code that will always be executed
}
```
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