Within a try-catch block, create a buffered, input stream reader based on the System.in stream (standard input)
时间: 2024-01-06 11:04:24 浏览: 29
Here's an example code snippet that creates a buffered input stream reader based on the System.in stream within a try-catch block:
```
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(System.in));
// use the reader to read input from standard input
} catch (IOException e) {
// handle any errors that occur
} finally {
// close the reader in the finally block to ensure it gets closed regardless of any exceptions
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
// handle any errors that occur while closing the reader
}
}
}
```
In this code, we first declare a `BufferedReader` variable called `reader` and initialize it to `null`. Then, within the `try` block, we create a new `BufferedReader` object using the `InputStreamReader` class to convert the `System.in` stream to a character stream, and wrap it in a `BufferedReader` to provide buffering and additional functionality. We can then use the `reader` object to read input from the standard input.
If an `IOException` occurs while creating the `reader`, we catch the exception in the `catch` block and handle it appropriately. Finally, in the `finally` block, we close the `reader` object to ensure that any resources it is using are released, even if an exception occurs.