Source of AppendTextFile.java


  1: //AppendTextFile.java
  2: 
  3: import java.io.PrintWriter;
  4: import java.io.FileOutputStream;
  5: import java.io.FileNotFoundException;
  6: import java.util.Scanner;
  7: 
  8: public class AppendTextFile
  9: {
 10:     public static void main(String[] args)
 11:     {
 12: 
 13:                 System.out.println("Sending output to out.txt.");
 14:         PrintWriter outputStream = null;
 15:         try
 16:         {
 17:                  System.out.print("Enter Append to append to out.txt, "
 18:                 + "\nor New to create a new file: ");
 19:                          Scanner keyboard = new Scanner(System.in);
 20:                          String ans = keyboard.next();
 21:             boolean append = ans.equalsIgnoreCase("append");
 22:                         outputStream =
 23:                 new PrintWriter(new FileOutputStream("out.txt", append));
 24:         }
 25:         catch(FileNotFoundException e)
 26:         {
 27:             System.out.println("Error opening the file out.txt.");
 28:             System.exit(0);
 29:         }
 30:         System.out.println("Enter three lines of text:");
 31:         Scanner keyboard = new Scanner(System.in);
 32:         for (int count = 1; count <= 3; count++)
 33:         {
 34:             String line = keyboard.nextLine();
 35:             outputStream.println(count + " " + line);
 36:         }
 37:         outputStream.close();
 38:         System.out.println("Those lines were written to out.txt.");
 39:     }
 40: }
 41: