Copying a file content:
FileReader and FileWriter can be combined together to copy a content from one file to another.
Example
import java.io.BufferedReader; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; public class FileCopyExample { public static void main(String[] args) { try { FileReader fr = new FileReader("input.txt"); BufferedReader br = new BufferedReader(fr); FileWriter fw = new FileWriter("output.txt", true); String s; while ((s = br.readLine()) != null) { // read a line fw.write(s); // write to output file fw.flush(); } br.close(); fw.close(); System.out.println("file copied"); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }
Run the above program and check the output