学习Java08

CODE:

import java.util.*;import java.io.*;public class DotComBust{private GameHelper helper= new GameHelper();private ArrayList<DotCom> dotComsList = new ArrayList<DotCom>();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("please Guess!:");for (DotCom dotComToSet : dotComsList){ArrayList<String>newLocation = helper.placeDotCom(3);dotComToSet.setLocationCells(newLocation);}}private void StartPlaying(){while(!dotComsList.isEmpty()){String userGuess=helper.getUserInput("Enter a guess!");checkUserGuess(userGuess);}finishGame();}public class GameHelper {  private static final String alphabet = "abcdefg";  private int gridLength = 7;  private int gridSize = 49;  private int [] grid = new int[gridSize];  private int comCount = 0;  public String getUserInput(String prompt) {     String inputLine = null;     System.out.print(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<String> placeDotCom(int comSize) {           ArrayList<String> alphaCells = new ArrayList<String>();    //String [] alphacoords = new String [comSize];      // 保存字符串    String temp = null;                                // 临时字符串    int [] coords = new int[comSize];                  // 现有字符串    int attempts = 0;                                  // 目前测试的字符串    boolean success = false;                           // flag = 找到了合适的字符吗 ?    int location = 0;                                  // 目前起点        comCount++;                                          int incr = 1;                                           if ((comCount % 2) == 1) {                                incr = gridLength;                                   }    while ( !success & attempts++ < 200 ) {           location = (int) (Math.random() * gridSize);              //System.out.print(" try " + location);int x = 0;                                                success = true;                                       while (success && x < comSize) {                        if (grid[location] == 0) {                                coords[x++] = location;                                location += incr;                                        if (location >= gridSize){                                 success = false;                                       }             if (x>0 & (location % gridLength == 0)) {                  success = false;                                      }          } else {                                                   // System.out.print(" used " + location);                success = false;                                     }        }    }                                                     int x = 0;                                              int row = 0;    int column = 0;    // System.out.println("\n");    while (x < comSize) {      grid[coords[x]] = 1;                              // mark master grid pts. as 'used'      row = (int) (coords[x] / gridLength);             // get row value      column = coords[x] % gridLength;                  // get numeric column value      temp = String.valueOf(alphabet.charAt(column));   // convert to alpha            alphaCells.add(temp.concat(Integer.toString(row)));      x++;      // System.out.print("  coord "+x+" = " + alphaCells.get(x-1));          }    // System.out.println("\n");        return alphaCells;   }}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")){break;}}System.out.println(result);}private void finishGame(){System.out.println("ALL DOT HAVE BEEN KILLED!YOU WIN THE GAME!");System.out.println("It took you "+numOfGuesses+"guesses.");}public class DotCom{private ArrayList<String> locationCells;private String name;public void setLocationCells(ArrayList<String> loc){locationCells=loc;}public void setName(String n){name=n;}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;}}public class Day {         public static void main(String args[]) {DotComBust game = new DotComBust();game.setUpGame();game.StartPlaying();      }             }}