Java read file line by line
In this section, you will learn how to read a file line by line.
In this section, you will learn how to read a file line by line.Java read file line by line
In this section, you will learn how to read a file line by line.
Java has provide several classes for file manipulation. Here we are going to
read a file line by line. For reading text from a file it's better to use a
Reader class instead of a InputStream class since Reader classes have the
purpose of reading textual input.
In the given example, we have simply create a BufferedReader object and start
reading from the file line by line until the readLine() method of BufferedReader
class returns null, which indicates the end of the file.
hello.txt:
| Hello, Where there is will, there is a way. |
Here is the code:
import java.io.*;
public class ReadFile {
public static void main(String[] args) throws Exception {
File f = new File("C:/Hello.txt");
if (!f.exists() && f.length() < 0) {
System.out.println("The specified file does not exist");
} else {
FileReader fr = new FileReader(f);
BufferedReader reader = new BufferedReader(fr);
String st = "";
while ((st = reader.readLine()) != null) {
System.out.println(st);
}
}
}
}
In this above code, the BufferedReader class is used to read text from a file line by line using it's readLine method.
