import java.io.*;import java.util.*;public class GameHelper {    int comCount = 0;        public String getUserInput(String prompt) {        String inputLine = null;        System.out.println(prompt + " ");        try {            BufferedReader is = new BufferedReader(                    new InputStreamReader(System.in));            inputLine = is.readLine();            if (inputLine.length() == 0 ) return null;        } catch (IOException e) {            System.out.println("IOException: " + e);        }        return inputLine.toLowerCase();    }        public ArrayList
     
       placeDotCom(int comSize) {        final String alphabet = "abcdefg";        int gridLength = 7;        int gridSize = 49;        int [] grid = new int[gridSize];                 ArrayList
      
        alphaCells = new ArrayList
       
        ();        String temp = null;        int [] coords = new int[comSize];        int attempts = 0;        boolean success = false;        int location = 0;        int incr;        if (((int) (Math.random() * 2) % 2) == 1) {            incr = gridLength;        } else {            incr = 1;        }        //System.out.println("incr is: " + incr);                while ( !success & attempts++ < 200) {            location = (int) (Math.random() * gridSize);            //System.out.println("location: " +location);            int x = 0;            success = true;            while (success && x < comSize) {                if (grid[location] == 0) {                    coords[x++] = location;                    location += incr;                    //System.out.println("location: " +location);                    if (location >= gridSize) {                        success = false;                    }                    if (x > 0 && (location % gridLength == 0)) {                        success = false;                    }                } else {                    success = false;                }            //System.out.println("sucess status is :" + success);            //System.out.println("x value is :" + x);            }        }        //System.out.print("coords array is :");        //for (int item : coords) {        //    System.out.print(item + " ");        //}        //System.out.println("");        int x = 0;        int row = 0;        int column = 0;        while (x < comSize) {            grid[coords[x]] = 1;            row = (int) (coords[x] / gridLength);            //System.out.println("row value is :" + row);            column = (int) (coords[x] % gridLength);            temp = String.valueOf(alphabet.charAt(column));            //System.out.println("temp value is :" + temp);            alphaCells.add(temp.concat(Integer.toString(row)));            x++;        }        //for (String item : alphaCells) {        //    System.out.print(item + " ");        //}        return alphaCells;    }}
       
      
     

import java.util.*;public class DotCom {    private ArrayList
     
       locationCells;    private String name;        public void setLocationCells(ArrayList
      
        loc) {        locationCells = loc;    }        public void setName(String n) {        name = n;    }    public String getName() {        return name;    }        public String checkYourself(String userInput) {        String result = "miss";        int index = locationCells.indexOf(userInput);        if (index >= 0) {            locationCells.remove(index);            if (locationCells.isEmpty()) {                result = "kill";                System.out.println("Ouch! You sunk " + name + " :(");            } else {                result = "hit";            }        }        return result;    }}
      
     

import java.util.*;public class DotComBust {    private GameHelper helper = new GameHelper();    private ArrayList
     
       dotComsList = new ArrayList
      
       ();    private int numOfGuesses = 0;        private void setUpGame() {        DotCom one = new DotCom();        one.setName("Pets.com");        DotCom two = new DotCom();        two.setName("eToys.com");        DotCom three = new DotCom();        three.setName("Go2.com");        dotComsList.add(one);        dotComsList.add(two);        dotComsList.add(three);                System.out.println("Your goal is to sink three doc coms.");        System.out.println("Pets.com, eToys.com, Go2.com");        System.out.println("Try to sink them all in the fewsest number of guesses.");                for(DotCom dotComToSet : dotComsList) {            ArrayList
       
         newLocation = helper.placeDotCom(3);            dotComToSet.setLocationCells(newLocation);            for (String item : newLocation) {                System.out.print( item +" ");            }                        System.out.println(dotComToSet.getName());            System.out.println();        }    }        private void startPlaying() {        while (!dotComsList.isEmpty()) {            String userGuess = helper.getUserInput("Enter a guess");            checkUserGuess(userGuess);        }        finishGame();    }        private void checkUserGuess(String userGuess) {        numOfGuesses++;        String result = "miss";        for (DotCom dotComToTest : dotComsList) {            result = dotComToTest.checkYourself(userGuess);            if (result.equals("hit")) {                break;            }            if (result.equals("kill")) {                dotComsList.remove(dotComToTest);                break;            }        }        System.out.println(result);    }        private void finishGame(){        System.out.println("All Dot Coms are dead! Your stock is now worthless.");        if (numOfGuesses < 18) {            System.out.println("It's only took you " + numOfGuesses + " guesses.");            System.out.println("You got out before your options sank.");        } else {            System.out.println("Took you long enough." + numOfGuesses + " guesses.");            System.out.println("Fish are dancing with you options..");        }    }        public static void main (String[] args) {        DotComBust game = new DotComBust();        game.setUpGame();        game.startPlaying();        System.out.println("Finish");    }}