Question & Answer: You are to create the framework for a Battleship game. You need to create a 5×5 grid that represents the gameboard. "+" signs repre…..

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package chegg.august;

import java.util.ArrayList;

/**
*
* @author Sam
*/
class BattleShip {
public enum Orientation {
HORIZONTAL,
VERTICAL
}
private final int startX;
private final int startY;
private final int length;
private final Orientation orientation;

public BattleShip(int startX, int startY, int length, Orientation orientation) {
this.startX = startX;
this.startY = startY;
this.length = length;
this.orientation = orientation;
if (orientation == null)
throw new IllegalArgumentException(“orientaion cannot be null”);
if (startX < 0 || startY < 0)
throw new IllegalArgumentException(“x and y cannot be less than zero”);
if (orientation == Orientation.HORIZONTAL)
if (startX + length > BattleShipGame.maxX)
throw new IllegalArgumentException(“ship exceeds board limit”);
if (orientation == Orientation.VERTICAL)
if (startY + length > BattleShipGame.maxY)
throw new IllegalArgumentException(“ship exceeds board limit”);

}

boolean isIn(int x, int y) {
if (orientation == Orientation.HORIZONTAL) {
if (startY == y && x >= startX && x < startX + length)
return true;
}
else if (orientation == Orientation.VERTICAL) {
if (startX == x && y >= startY && y < startY + length)
return true;
}
return false;
}

boolean overlaps(BattleShip other) {
int maxX = (orientation == Orientation.HORIZONTAL)?startX+length:startX;
int maxY = (orientation == Orientation.VERTICAL)?startY+length:startY;
for (int i = startX; i < maxX ; i++)
for (int j = startY; j < maxY; j++)
if (other.isIn(j, j))
return true;
return false;
}
}

class BattleShipGame {
static final int maxX = 5;
static final int maxY = 5;
private final char [][] gameBoard;
private final ArrayList<BattleShip> battleShips;

public BattleShipGame(ArrayList<BattleShip> battleShips) {
gameBoard = new char[maxX][maxY];
for (int i = 0; i < maxX; i++)
for (int j = 0; j < maxY; j++)
gameBoard[i][j] = ‘-‘;
this.battleShips = new ArrayList<>();
for (BattleShip battleShip: battleShips) {
for (BattleShip addedShips: this.battleShips)
if (battleShip.overlaps(addedShips))
throw new IllegalArgumentException(“Ships overlapping other ships”);
this.battleShips.add(battleShip);
}
}

boolean fire(int x, int y) {
if (gameBoard[x][y] != ‘-‘) {
System.err.println(“You cannot hit a slot more than once”);
return false;
}
for (BattleShip battleShip:battleShips)
if (battleShip.isIn(x,y)) {
gameBoard[x][y] = ‘X’;
return true;
}
gameBoard[x][y] = ‘O’;
return false;
}
}

This sould work well. Do you need a main method too?