Curriculum
BufferedReader and BufferedWriter in Java are advanced file handling classes used for efficient reading and writing of character data. These classes improve performance by using buffering techniques, making file operations faster and more optimized.
In this Core Java course in Jaipur, students will learn BufferedReader in Java, BufferedWriter in Java, buffering concepts, reading files line by line, writing text efficiently, and practical examples used in software development.
BufferedReader and BufferedWriter are widely used in:
Understanding BufferedReader and BufferedWriter in Java helps students build high-performance applications with optimized file handling.
Buffering is the process of:
before:
This reduces:
They help developers:
The:
BufferedReaderclass is used to:
It reads:
import java.io.BufferedReader;BufferedReader works together with:
FileReaderBufferedReader reader =
new BufferedReader(new FileReader("file.txt"));import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
class BufferedReaderExample {
public static void main(String[] args) {
try {
BufferedReader reader =
new BufferedReader(new FileReader("student.txt"));
String line;
while((line = reader.readLine()) != null) {
System.out.println(line);
}
reader.close();
} catch(IOException e) {
System.out.println("Error Reading File");
}
}
}Java Programming
Core Java CourseJava Programming
Core Java CoursereadLine()reads:
It returns:
nullwhen file ends.
BufferedReader provides:
The:
BufferedWriterclass is used to:
It stores data temporarily in buffer before writing into file.
import java.io.BufferedWriter;BufferedWriter works together with:
FileWriterBufferedWriter writer =
new BufferedWriter(new FileWriter("file.txt"));import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
class BufferedWriterExample {
public static void main(String[] args) {
try {
BufferedWriter writer =
new BufferedWriter(new FileWriter("student.txt"));
writer.write("Welcome to Java");
writer.newLine();
writer.write("BufferedWriter Example");
writer.close();
System.out.println("Data Written Successfully");
} catch(IOException e) {
System.out.println("Error Writing File");
}
}
}Data Written SuccessfullynewLine()adds:
flush()forces buffered data to:
writer.flush();| FileReader | BufferedReader |
|---|---|
| Reads character by character | Reads line by line |
| Slower | Faster |
| Less efficient for large files | More efficient |
| FileWriter | BufferedWriter |
|---|---|
| Direct writing | Buffered writing |
| Slower for large data | Faster performance |
| No line buffering | Supports buffering |
BufferedWriter writer =
new BufferedWriter(new FileWriter("student.txt", true));Using:
trueenables append mode.
Common exceptions:
catch(IOException e) {
System.out.println("File Error");
}Processing:
Managing:
Writing:
Reading:
These classes provide:
This may cause:
Wrong file paths may cause:
FileNotFoundExceptionFile operations require:
Understanding these classes helps students:
In this lesson, students learned:
These concepts are essential for Java programming, backend development, and enterprise software systems.
BufferedReader is used for efficient reading of character data from files.
BufferedWriter is used for efficient writing of character data into files.
They use buffering to reduce direct file access operations.
readLine() reads one complete line from file.
flush() forces buffered data to write immediately into file.
They are used in banking systems, logging systems, backend applications, and enterprise software.