// LineCount.java
// Count how many lines are in a file of text
// P. Conrad, for UCSB CS5JA, 03/05/2008


public class LineCount
{
    public static void main(String args[])
    {
	// Make sure there is exactly one argument

	if (args.length!=1) {
	    System.out.println("Error: you should pass exactly one argument");
	    System.out.println("That argument should be the filename");
	    System.exit(1); // non zero status code signifies an error
	}

	// Store the first argument in the variable "filename"

	String filename = args[0];

	// Try to open the file

	try {
	    Scanner fileInput;
	    fileInput =
		new Scanner(new BufferedReader(new FileReader(filename)));
	} catch (IOException e) {
	    System.out.println("Error: could not open " + filename);
	    System.out.println("The error was " + e.toString());
	    System.exit(2); // error number two!
	}		   

	System.out.println("Successfully opened the file " + filename);
	System.out.println("Now, we'll count the lines...");

	// If that worked, read through every line in the file
	// and count how many there are

	// @@@

	// Output the result

	// @@@
    }
	

}