IO_demarkbc_worksheet







Lab: Experimenting with Input/Output



3.3. What was the first error generated by the compiler?
cannot find symbol
symbol: class printwriter
Location: class Rooter


3.4. What line did you need to add?
import java.io.*;


3.6. What was the first error generated by the compiler this time?
cannot find symbol
Symbol: class scanner
Location: class rooter


3.7.  Fix this error.  What line did you need to add?
import java.util.Scanner;


4.4. Why was no output generated?
you need to flush the screen after to print


4.5. Fix this mistake.  What line did you add?
screen.flush();


4.6. What do you need to type in the terminal window (as a response to
the prompt) in order to make this application terminate normally?
control + z


5.4. What output was generated?
Today's Date: 22 January 2007
Birthday : Sir Francis Bacon
Birthday: George Forman


5.6. What happened and why?
there was a system cannot find file specified error, because there is no anniversary.txt file 
in the directory.          

5.8 What changes did you need to make?
dd a while loop to execute the code for each command line argument passed
          

5.10. What changes did you need to make?
you need the following line 
dates = new File(args[0]);


5.12. What changes did you need to make?
added a try catch statement to candle the exception if the file is not found

          
5.14. What output was generated?
Today's Date: 22 January 2007
Birthday : Sir Francis Bacon
Birthday: George Forman

          

6.2. What changes did you need to make?
add a while loop to execute the code for each command line argument passed
          

6.4. What output was generated?
Today's Date: 22 January 2007
Birthday : Sir Francis Bacon
Birthday: George Forman

Todays's Date: 22 January 2007
Programming Assignment 1 due
Review the Java tutorial on Exceptions