Cypher.java

import java.util.*;
import java.io.*;

class Cypher {
 public static void main(String args[]) {
 try {
 String n;
 char c;
 int i;
 Scanner scan = new Scanner(System.in);
 System.out.println("Enter file name:");
 n = scan.nextLine();
 FileReader fin = new FileReader("input.txt");
 FileWriter fout = new FileWriter(n);
 while ((i = fin.read()) != -1) {
 c = (char) i;
 System.out.println(c);
 fout.write(i + 3);
 }
 fin.close();
 fout.close();
 } catch (FileNotFoundException e) {
 System.out.println("Caught Exception" + e);
 } catch (IOException e) {
 System.out.println("Caught Exception" + e);
 }
 }
}