import java.util.*;

import java.io.*;

public class ArrayListMain
{

	public static void main (String[ ] args) 
	{
        	List<String> aList = new ArrayList<String>();

        	BufferedReader keyboardReader = new BufferedReader
                                              (new InputStreamReader (System.in)),
                               fileReader;

        	String inFilePath,
                       line,
                       word;

	      	try
		{
			System.out.print ("\nPlease enter the path for the input file: ");
            		inFilePath = keyboardReader.readLine();
            		fileReader = new BufferedReader (new FileReader (inFilePath));
            		while (true)
            		{
                		line = fileReader.readLine();
                		if (line == null)
                    			break;
                		aList.add (line);
            		} // while not end of file            

            		System.out.print ("\n\nPlease enter the word you want to search for: ");
            		word = keyboardReader.readLine();
            		if (aList.indexOf (word) >= 0)
                		System.out.println (word + " was found.\n\n");
            		else
                		System.out.println (word + " was not found.\n\n");

            		System.out.print ("Please enter the word you want to remove: ");
            		word = keyboardReader.readLine();
            		int removalCount = 0;
            		while (aList.remove (word))
                   		removalCount++;
            		if (removalCount == 0)
                   		System.out.println (word + " was not found, so not removed.\n\n");
            		else if (removalCount == 1)
                  		System.out.println ("The only instance of " + word + 
         					    " was removed.\n\n");
            		else
                   		System.out.println ("All " + removalCount + " instances of " +
                                                    word  + " were removed.\n\n");

            		System.out.print ("Please enter the word you want to append: ");
            		word = keyboardReader.readLine();
            		aList.add (word);
            		System.out.println (word + " was appended.\n\n");

            		System.out.print ("Please enter the word you want to upper case: ");
            		word = keyboardReader.readLine();
            		int position = aList.indexOf (word);
            		if (position >= 0)
            		{
                	      aList.set (position, word.toUpperCase());
                	      System.out.println (word + " was converted to upper-case.\n\n");
            		} // if word is in aList
            		else
                	     System.out.println (word + 
         				  " was not found, so not upper-cased.\n\n");

            		System.out.println ("Here is the final version:\n" + aList);
		} // try
		catch (IOException e)
		{
			System.out.println (e);
		} // catch
    } // method main

} // class ArrayListMain