COP 3337
SECTION U08
FALL 2015


                 COUNTING THE'S
                 ==============



I.  This program reads a text file and prints out the number of 
occurrences of the string "the" in the file.

The program:


import java.io.*;
import java.util.Scanner;
public class CountThe 
{

    public static void main(String[] args) 
    {
        // form a scanner for the keyboard
        Scanner keyboard = new Scanner(System.in);
        
        // get the name of the input file
        Scanner in = null; // the scanner for the file
        String name = null ; // the name of the file
        try
        {
            System.out.print("Enter the name of the input file >");
            name = keyboard.next();
            
            File inFile = new File(name);
            in = new Scanner(inFile);
        }    
        
        catch (IOException e)
        {
            System.err.println("Error. The file cannot be opened.");
            System.exit(1);
        }    
        
        System.out.println("The Number of The's in the File");
        System.out.println("===============================\n\n");
        
        // process the input file
        int count = 0; // the number of the's in the file
        while(in.hasNext())
        {   
            // the file is not empty, get the next word
            String current = in.next();
            if ( current.equalsIgnoreCase("the"))
                count++;
        }    
        
        System.out.println("There are " + count + " the's in file "
                + name + ".");
        
        System.exit(0);
    }
}

II. The input file mosh.txt is between the 2 dash lines.

--------------------------------------------------------------
The old man had a dog. The dog's name was Jeff.
Their house was at the corner of Nowhere Street.
--------------------------------------------------------------

III. The output:

run:
Enter the name of the input file >U:\mosh.txt
The Number of The's in the File
===============================


There are 3 the's in file U:\mosh.txt.
BUILD SUCCESSFUL (total time: 33 seconds)