file handling in java using bufferedreader
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certainly! file handling in java is an essential skill for any java developer. one of the most efficient ways to read data from a file in java is by using the `bufferedreader` class. this class allows you to read text from a character-input stream efficiently.
overview of bufferedreader
**bufferedreader**: it reads text from a character-based input stream, buffering characters to provide efficient reading of characters, arrays, and lines.
**filereader**: it is a convenience class for reading character files. it makes use of the default character encoding and is not buffered.
steps for using bufferedreader
1. **import necessary classes**: you need to import `java.io.*` for file handling.
2. **create a file object**: define the path of the file you want to read.
3. **create a bufferedreader**: use `filereader` wrapped with `bufferedreader` to read the file.
4. **read data**: use methods like `readline()` to read the data line by line.
5. **close the stream**: always close the stream to free up system resources.
code example
here's a simple example demonstrating how to use `bufferedreader` to read a text file line by line.
example code
explanation of the code
1. **file path**: the `filepath` variable holds the location of the file you want to read. make sure the specified file exists.
2. **bufferedreader initialization**:
a `filereader` is created using the file path.
this `filereader` is then wrapped in a `bufferedreader` for efficient reading.
3. **reading lines**:
the `readline()` method reads a line of text and returns it as a `string`. it returns `null` when the end of the file is reached.
the lines are printed to the console.
4. **exception handling**:
`ioexception` is caught and handled to manage any issues during file reading.
5. **resource management**:
the `bufferedreader` is closed in a finally block to ensure that the resource is freed even if an exception occurs.
best practices
always close your ...
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