Course:
Learn Java Programming
In this example, BufferedWriter is used with a specified buffer size. Adjusting the buffer size can improve performance depending on the size of data being written and system specifics.
package filewriting;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
public class BufferedWriterExample2 {
public static void main(String[] args) {
// This is actually the default size, but you can choose your own
int bufferSize = 8192; //No of Characters
try {
BufferedWriter writer = new BufferedWriter
(new FileWriter("example1.txt"), bufferSize);
writer.write("Hello, this text uses a custom buffer size.");
writer.newLine();
writer.write("More efficient for large amounts of data.");
System.out.println("The file writing operation completed!");
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Output
The file writing operation completed!
In this example, a larger buffer size may be beneficial if you’re writing large amounts of data at once. It reduces the number of physical disk writes by storing more data in memory before flushing it to disk.
Using BufferedWriter over FileWriter directly provides a significant performance advantage when writing character data to a file, especially in cases where many small write operations occur.
The buffering minimizes the number of I/O operations, each of which could be costly due to the overhead of interacting with the disk.