I have what I (as a total beginner) consider an odd problem. I have spent a couple days thinking about, checked out related posts on this forum, and rechecked the typed code; but I can't find the problem. I imagine it will be simple, but I don't get it (at this stage). (I am using
Java 6)
There are three classes. DotComBust DotCom GameHelper
DotCom compiles OK
GameHelper compiles OK
DotComBust does not compile - it complains not finding the 'DotCom' symbol.
Below are the classes and error output.
import java.util.*;
public class DotComBust {
private GameHelper helper = new GameHelper();
private ArrayList<DotCom> dotComsList = new ArrayList<DotCom>();
private int numOfGuesses = 0;
private void setUpGame() {
// first make some dot coms and them locations
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 threee dot coms.");
System.out.println("Pets.com, eToys.com, Go2.com");
System.out.println("Try to sink them all in the fewest number of guesses");
for(DotCom dotComToSet : dotComsList){
ArrayList<
String> newLocation = helper.placeDotCom(3);
dotComToSet.setLocationCells(newLocation);
} // close loop
} //close set up game Method
private void startPlaying() {
while(!dotComsList.isEmpty()) {
String userGuess = helper.getUserInput("Enter a guess");
checkUserGuess(userGuess);
} //close while
finishGame();
} //close start playing game Method
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 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 your options.");
}
} //close method
public static void main (String[] args) {
DotComBust game = new DotComBust();
game.setUpGame();
game.startPlaying();
}
}
import java.util.*;
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";
} // clase if
}
return result;
} // close method
} // close class
import java.io.*;
import java.util.*;
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];
String temp = null;
int [] coords = new int[comSize];
int attempts = 0;
boolean success = false;
int location = 0;
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;
row = (int) (coords[x] / gridLength);
column = coords[x] % gridLength;
temp = String.valueOf(alphabet.charAt(column));
alphaCells.add(temp.concat(Integer.toString(row)));
x++;
}
//System.out.println("/n");
return alphaCells;
}
}
Thanks, any help would be much appreciated.
Marten
