/* 
 * Important! You must import the util and io libraries for this to work!
 */
import java.util.Random;
import java.util.StringTokenizer;
import java.io.*;

/*
 * This example program illustrates how to use a BufferedReader to read
 * line-by-line from an input file, how to use a StringTokenizer to
 * read words from a string. It also illustrates the use of exception
 * handling by try-catch to handle the potential I/O errors.  
 */
public class PrintWords {

    public static void main(String[] args) {

	String filename = args[0];

	// We need try-catch because of potential problems with the files.
	try {

	    /* 
	     * We create a BufferedReader from the filename which is the first
	     * first command-line argument.
	     */
	    BufferedReader inputReader 
		= new BufferedReader(new FileReader(filename));

	    /* The following while loop reads from the file line-by-line.  */
	    boolean moreInput = true; 
	    String oneLine;

	    while (moreInput) {

		// Read a line from the file.
		oneLine = inputReader.readLine();

		if (oneLine == null) {
		    moreInput = false;
		} else {

		    StringTokenizer wordGetter = new StringTokenizer(oneLine);

		    /* 
		     * The following while loop reads individual 
		     * words from a string and inserts them into 
		     * the linked list
		     */
		    while (wordGetter.hasMoreTokens()) {

			// Get a single word from the line
			String oneWord 
			    = wordGetter.nextToken(" \t\n\",.;:?()"); 

			// Just print out the word
			System.out.println(oneWord);
		    }
		}
	    } 

	    /* Now we close the input file. */
	    inputReader.close();

	} catch(IOException anError) {
	    // Show the function call stack for debugging.
	    anError.printStackTrace(); 
	}
    }
}