send EDITED code please Battleship.java package part3; public class Battleship {

Question

send EDITED code please

Battleship.java

package part3;

public class Battleship {

   public static void main(String[] args) {

      

       // Generate a grid of 15 columns by 10 rows.

       BattleshipGrid aGrid = new BattleshipGrid(10,10);

      

       // Print the grid.

       aGrid.print();

   }

}

Battleship Grid.java

package part3;

import java.util.Random;
import java.util.Scanner;

public class BattleshipGrid {
   private char[][] grid;
   private int gridRows, gridColumns;
  
   static final int CARRIER_SIZE = 5;
   static final int BATTLESHIP_SIZE = 4;
   static final int SUB_SIZE = 3;
   static final int DESTROYER_SIZE = 3;
   static final int PATROL_SIZE = 2;
  
   static final char CARRIER_CHAR = 'C';
   static final char BATTLESHIP_CHAR = 'B';
   static final char SUB_CHAR = 'S';
   static final char DESTROYER_CHAR = 'D';
   static final char PATROL_CHAR = 'P';
   static final char WATER_CHAR = '.';
  
   public BattleshipGrid(int columns, int rows){
       gridColumns = columns;
       gridRows = rows;
      
       // Make a two dimensional array of characters as the grid
       grid = new char[gridColumns][gridRows];
      
       // Clear the grid
       clear();
      
       // Assign the following ships
       assignShip(CARRIER_CHAR, CARRIER_SIZE);
       assignShip(BATTLESHIP_CHAR, BATTLESHIP_SIZE);
       assignShip(SUB_CHAR, SUB_SIZE);
       assignShip(DESTROYER_CHAR, DESTROYER_SIZE);
       assignShip(PATROL_CHAR, PATROL_SIZE);
   }
  
   // Clear the grid
   public void clear(){
       for (int row=0; row < gridRows; row++){
           for (int column=0; column < gridColumns; column++) grid[column][row] = WATER_CHAR;
       }
   }
  
   // Print the grid
   public void print(){
       for (int row=0; row < gridRows; row++){
           for (int column=0; column < gridColumns; column++) System.out.print(grid[column][row]);
           System.out.println("");
       }
   }
  
   // Assign a ship horizontally on the grid
   private boolean assignShipHorizontally(char shipType, int size){
      
       /*
       1.2   If horizontal, select a random row to place the ship.
       o   Select a random column position to start “growingâ€? your ship. The column position must be less than 10-size of the ship to ensure the ship will fit.
       o   Look at the next adjacent squares on the grid row to see if they are blank.
       o   If any of the squares are not blank then the ship will not fit so go back to 1.1.
       o   If the ship does fit then mark it with its designation.
       */
      
       // Select a row and a starting column to place a ship horizontally
       Random randomGenerator = new Random();
       int chosenRow = randomGenerator.nextInt(gridRows);
       int startingColumn = randomGenerator.nextInt(gridColumns-size);
      
       // Count consecutive grid locations horizontally and see if we can accommodate ship
       int countSegments = 0;
       for (int c = startingColumn; c < startingColumn+size; c++){
           if (grid[c][chosenRow] == WATER_CHAR) countSegments++;
       }
      
       // If ship will fit then allocate the ship horizontally
       if (countSegments == size){
           for (int c = startingColumn; c < startingColumn+size; c++){
               grid[c][chosenRow] = shipType;
           }          
           return true;
       }

       return false;
   }
  
   // Assign the ship vertically on the grid
   private boolean assignShipVertically(char shipType, int size){
       /*
       1.3   If vertical, select a random column to place the ship.
       o   Select a random row position to start “growingâ€? your ship. The row position must be less than 10-size of the ship to ensure the ship will fit.
       o   Look at the next adjacent squares on the grid column to see if they are blank.
       o   If any of the squares are not blank then the ship will not fit so go back to 1.1.
       o   If the ship does fit then mark it with its designation.
       */
      
       // Select a column and a starting row to place a ship vertically
       Random randomGenerator = new Random();
       int chosenColumn = randomGenerator.nextInt(gridColumns);
       int startingRow = randomGenerator.nextInt(gridRows-size);
      
       // Count consecutive grid locations vertically and see if we can accommodate ship
       int countSegments = 0;
       for (int r = startingRow; r < startingRow+size; r++){
           if (grid[chosenColumn][r] == WATER_CHAR) countSegments++;
       }
      
       // If ship will fit then allocate the ship vertically
       if (countSegments == size){
           for (int r = startingRow; r < startingRow+size; r++){
               grid[chosenColumn][r] = shipType;
           }          
           return true;
       }

       return false;
   }
  
   // Assign a ship to the grid
   private void assignShip(char shipType, int size){
      
       Random randomGenerator = new Random();
      
       boolean status = false;
       do{
           // Randomly choose between horizontal and vertical allocation.
           // Sometimes an allocation isnÊ»t possible so roll the dice and try again.
           if (randomGenerator.nextInt(2) == 0)
               status = assignShipHorizontally(shipType, size);
           else
               status = assignShipVertically(shipType, size);
       } while(status != true);
      
   }
  
   public boolean playGame(){
       // Print the board
       // 1) write a for loop to iterate through the rows
       for (){
           // 2) write a for loop to iterate through the columns
           for (){
               // 3) if grid[column][row] is 'X'
               if(){
                   // 4) print " "+grid[column][row] (use System.out.print)
               } else{
                   // 5) else print " "+WATER_CHAR (use System.out.print)
               }
           }
           System.out.println("");
       }
      
       // Ask user for coordinate
       // 6) Create a Scanner called sc instantiate it using new Scanner(System.in)

       // Ask user to enter a coordinate
       System.out.print("Enter a coordinate (col,row): ");

       // 7) read in the first integer to an integer called userCol
       // 8) read in the second integer to an integer called userRow
      
       // Check if column and row are with in the range of the board
       // 9) Check if (userRow is less than 0) or (userRow is greater than or equal to gridRows),
       if(){
           // 10) use print() method to reveal location of ships
           // 11) return false to end game
       }
       // 12) Check if (userCol is less than 0) or (userCol is greater than or equal to gridColumns),
       if(){
           // 13) use print() method to reveal location of ships
           // 14) return false to end game
       }
      
       // 15) Check if grid[userCol][userRow] intersects with a ship,
       if(){
           // 16) set value at userCol, userRow to 'X'
       }
      
       // return true to continue playing the game
       return true;
   }

}

Part 3: Modify Battleship Map Creator For this part, you will write a playGame() method that will print the board, ask a user for a coordinate, check if a ship is at this coordinate and mark an X for hit. If a coordinate entered is outside the range of the board, show the ships and end the game. In BattelshipGrid.java: » Locate the playGame() method in the BattelshipGrid.java file · write the code for steps 1-16 In Battelship.java: At line 11, comment out aGrid.print(); At line 12, add the following while loop. o while(aGrid.playGame()); » » Please note You can only have spaces between coordinates when you input them. Otherwise an exception will be thrown » » If you sink all the ships, the game will not end o For extra practice, add code that will end the game when all ships are sunk

Explanation / Answer

package part3;

public class Battleship {

   public static void main(String[] args) {

    

       // Generate a grid of 15 columns by 10 rows.

       BattleshipGrid aGrid = new BattleshipGrid(10,10);

    

       // Print the grid.

//       aGrid.print();
    while(aGird.playGame());
   }

}

package part3;

import java.util.Random;
import java.util.Scanner;

public class BattleshipGrid {
   private char[][] grid;
   private int gridRows, gridColumns;

   static final int CARRIER_SIZE = 5;
   static final int BATTLESHIP_SIZE = 4;
   static final int SUB_SIZE = 3;
   static final int DESTROYER_SIZE = 3;
   static final int PATROL_SIZE = 2;

   static final char CARRIER_CHAR = 'C';
   static final char BATTLESHIP_CHAR = 'B';
   static final char SUB_CHAR = 'S';
   static final char DESTROYER_CHAR = 'D';
   static final char PATROL_CHAR = 'P';
   static final char WATER_CHAR = '.';

   public BattleshipGrid(int columns, int rows){
       gridColumns = columns;
       gridRows = rows;
    
       // Make a two dimensional array of characters as the grid
       grid = new char[gridColumns][gridRows];
    
       // Clear the grid
       clear();
    
       // Assign the following ships
       assignShip(CARRIER_CHAR, CARRIER_SIZE);
       assignShip(BATTLESHIP_CHAR, BATTLESHIP_SIZE);
       assignShip(SUB_CHAR, SUB_SIZE);
       assignShip(DESTROYER_CHAR, DESTROYER_SIZE);
       assignShip(PATROL_CHAR, PATROL_SIZE);
   }

   // Clear the grid
   public void clear(){
       for (int row=0; row < gridRows; row++){
           for (int column=0; column < gridColumns; column++) grid[column][row] = WATER_CHAR;
       }
   }

   // Print the grid
   public void print(){
       for (int row=0; row < gridRows; row++){
           for (int column=0; column < gridColumns; column++) System.out.print(grid[column][row]);
           System.out.println("");
       }
   }

   // Assign a ship horizontally on the grid
   private boolean assignShipHorizontally(char shipType, int size){
    
       /*
       1.2   If horizontal, select a random row to place the ship.
       o   Select a random column position to start “growingâ€? your ship. The column position must be less than 10-size of the ship to ensure the ship will fit.
       o   Look at the next adjacent squares on the grid row to see if they are blank.
       o   If any of the squares are not blank then the ship will not fit so go back to 1.1.
       o   If the ship does fit then mark it with its designation.
       */
    
       // Select a row and a starting column to place a ship horizontally
       Random randomGenerator = new Random();
       int chosenRow = randomGenerator.nextInt(gridRows);
       int startingColumn = randomGenerator.nextInt(gridColumns-size);
    
       // Count consecutive grid locations horizontally and see if we can accommodate ship
       int countSegments = 0;
       for (int c = startingColumn; c < startingColumn+size; c++){
           if (grid[c][chosenRow] == WATER_CHAR) countSegments++;
       }
    
       // If ship will fit then allocate the ship horizontally
       if (countSegments == size){
           for (int c = startingColumn; c < startingColumn+size; c++){
               grid[c][chosenRow] = shipType;
           }        
           return true;
       }

       return false;
   }

   // Assign the ship vertically on the grid
   private boolean assignShipVertically(char shipType, int size){
       /*
       1.3   If vertical, select a random column to place the ship.
       o   Select a random row position to start “growingâ€? your ship. The row position must be less than 10-size of the ship to ensure the ship will fit.
       o   Look at the next adjacent squares on the grid column to see if they are blank.
       o   If any of the squares are not blank then the ship will not fit so go back to 1.1.
       o   If the ship does fit then mark it with its designation.
       */
    
       // Select a column and a starting row to place a ship vertically
       Random randomGenerator = new Random();
       int chosenColumn = randomGenerator.nextInt(gridColumns);
       int startingRow = randomGenerator.nextInt(gridRows-size);
    
       // Count consecutive grid locations vertically and see if we can accommodate ship
       int countSegments = 0;
       for (int r = startingRow; r < startingRow+size; r++){
           if (grid[chosenColumn][r] == WATER_CHAR) countSegments++;
       }
    
       // If ship will fit then allocate the ship vertically
       if (countSegments == size){
           for (int r = startingRow; r < startingRow+size; r++){
               grid[chosenColumn][r] = shipType;
           }        
           return true;
       }

       return false;
   }

   // Assign a ship to the grid
   private void assignShip(char shipType, int size){
    
       Random randomGenerator = new Random();
    
       boolean status = false;
       do{
           // Randomly choose between horizontal and vertical allocation.
           // Sometimes an allocation isnÊ»t possible so roll the dice and try again.
           if (randomGenerator.nextInt(2) == 0)
               status = assignShipHorizontally(shipType, size);
           else
               status = assignShipVertically(shipType, size);
       } while(status != true);
    
   }

   public boolean playGame(){
       // Print the board
       // 1) write a for loop to iterate through the rows
       for (int row=0;row<gridRows;row++){
           // 2) write a for loop to iterate through the columns
           for (int column=0;column<gridColumns;column++){
               // 3) if grid[column][row] is 'X'
               if(grid[column][row]='X'){
                   // 4) print " "+grid[column][row] (use System.out.print)
                   System.out.print(" "+grid[column][row]);
               } else{
                   // 5) else print " "+WATER_CHAR (use System.out.print)
                   System.out.print(" "+WATER_CHAR);
               }
           }
           System.out.println("");
       }
    
       // Ask user for coordinate
       // 6) Create a Scanner called sc instantiate it using new Scanner(System.in)
        Scanner sc = new Scanner(system.in);
       // Ask user to enter a coordinate
       System.out.print("Enter a coordinate (col,row): ");

       // 7) read in the first integer to an integer called userCol
       int userCol = sc.nextInt();
       // 8) read in the second integer to an integer called userRow
      int userRow = sc.nextInt();
       // Check if column and row are with in the range of the board
       // 9) Check if (userRow is less than 0) or (userRow is greater than or equal to gridRows),
       if(userRow<0 || userRow>=gridRows){
           // 10) use print() method to reveal location of ships
           print();
           // 11) return false to end game
           return false;
       }
       // 12) Check if (userCol is less than 0) or (userCol is greater than or equal to gridColumns),
       if(userCol<0 || userCol>=gridColumns){
           // 13) use print() method to reveal location of ships
           print();
           // 14) return false to end game
           return false;
       }
    
       // 15) Check if grid[userCol][userRow] intersects with a ship,
       if(grd[userCol][userRow]='C' || grid[userCol][userRow]='B' || grid[userCol][userRow]='S' || grid[userCol][userRow]='D' || grid[userCol][userRow]='P'){
           // 16) set value at userCol, userRow to 'X'
           grid[userCol][userRow]='X';
       }
    
       // return true to continue playing the game
       return true;
   }

}

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