java program to read a file using FileReader


FileReader

FileReader class for reading character files, It can read any file char by char.

Example

import java.io.File;
import java.io.FileReader;
import java.io.IOException;

public class FileReaderExample {

	public static void main(String[] args) {

		File f1 = new File("sam.txt");

		try {
			
			FileReader fr = new FileReader(f1);
			long s = 0; // starting point of file
			long e = f1.length(); // find total char in a file
		
			while (s < e) {
				char c = (char) fr.read(); // read a char using read() method
				System.out.print(c);
				s++;
			}
			
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}
}

Before executing the above program make sure you have a sam.txt file in current directory.
The above program will print all lines in a file to a console





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