Re: Need help with simple exercise!

From:
"Monga Monga" <13153099@puknet.ac.za>
Newsgroups:
comp.lang.java.programmer
Date:
3 May 2006 02:38:52 -0700
Message-ID:
<1146649132.847702.211790@j33g2000cwa.googlegroups.com>
Aries wrote:

Hello, i am new to programming.Here is a simple exercise:
Write a simple class that iterates through all the arguments passed in
on the command line and prints them out to the screen.
If no arguments are specified print a message explaining to the user
that they need to supply some arguments.

 Could u help me pls...


OK mfana, I will show you how to do this in java, but though keep in
mind that you can do more to improve the code and that I leave for you,
Hola!!

import java.util.StringTokenizer;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
public class SimpleExercise
{
    // Throws an exception to indicate that a problem occured due to
input operations
    public static void main(String[] args)throws IOException
    {

        BufferedReader reader = new BufferedReader(new
InputStreamReade(System.in));
        System.out.println("Please enter a line of text");

        /*Read the line of text from the consol window, the method
returnsnull if no line was entered*/
        String input = reader.readLine();

        boolean done = false;

        while(!done)
        {
           if(input == null)
           {
               done = true;
               System.out.println("Enter arguments on the console
window");
           }
           else
           {
               //This a class used to break up a sentence into words
               StringTokenizer token = new StringTokenizer(input);
               while(token.hasMoreTokens())
               {
                   String word = token.nextToken();
                   System.out.println(word);
               }
               input = reader.readLine();
           }
       }
       reader.close();
    }
}

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