IO_spaltts_worksheet







Lab: Experimenting with Input/Output



3.3. What was the first error generated by the compiler?

Rooter.java:8: cannot find symbol
    symbol  : class PrintWriter
    location: class Rooter
           PrintWriter     screen;


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?

Rooter.java:9: cannot find symbol
    symbol  : class Scanner
    location: class Rooter
           Scanner         keyboard;

3.7.  Fix this error.  What line did you need to add?

import java.util.*;

4.4. Why was no output generated?

The program does not flush after the output line.

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?

?

5.4. What output was generated?
          
Todays's Daye: 22 January 2007
	Birthday: Sir Fancis Bacon
	Birthday: George Foreman

5.6. What happened and why?

An error came up saying there is no such file          

5.8 What changes did you need to make?

private static File 			 dates;    

5.10. What changes did you need to make?

dates    = new File(args[0]);

5.12. What changes did you need to make?

// Use try/catch block in case of filenotfound exception
		 try
		 {
		 	// Substantiate dateScanner and get input from date
       	dateScanner = new Scanner(dates);
		 }
		 catch(FileNotFoundException fnfe)
		 {
		 	System.out.println("File was not found");
		 }
          
5.14. What output was generated?

     Today's Date: 22 January 2007
    	Birthday: Sir Francis Bacon
    	Birthday: George Foreman     

6.2. What changes did you need to make?

I had to create a loop that outputed each file that came through
          
6.4. What output was generated?

Today's Date: 22 January 2007
    	Birthday: Sir Francis Bacon
    	Birthday: George Foreman
    
    Today's Date: 22 January 2007
    	Programming Assignment 1 Due
    	Review the Java tutorial on Exceptions