Question: JAVA Here is my code with the instructions as comments. I am having an issue with the getNumberOfFreeSeats method. I have attached the error that
JAVA Here is my code with the instructions as comments. I am having an issue with the getNumberOfFreeSeats method. I have attached the error that I get after running the file using the test code.
CODE
public class Theater {
/*
* This method should return true if the row and column passed in are
* valid for the String array named seats (the row and column are within the array).
* You are guaranteed that the seats array has at least 1 row.
* All rows in the seats array have the same number of columns.
*/
public static boolean isSeatInTheater(int row, int column, String[][] seats) {
if (row
return false;
if (row > seats.length - 1)
return false;
int columnSize = seats[0].length - 1;
if (column > columnSize)
return false;
return true;
}
/*
* This method should return true if the customer directly in front of
* the customer at row, column is someone more than 3 units taller than them.
* A customer is front of another if they are in the same column but one
* row greater.
* Remember that row 0 is at the back of the theater. The front of the
* theater is the last row in the array.
* A height of -1 means there is no customer in the seat.
*/
public static boolean shouldCustomerBeMoved(int row, int column, int [][]heights) {
if(row == heights.length - 1)
return false;
if(heights[row + 1][column] == -1)
return false;
if(heights[row + 1][column] - 3 > heights[row][column]) {
return true;
}
return false;
}
/*
* This method should return the row number with the greatest number of occupied seats.
* If a seat is empty it will contain "" (an empty string), otherwise it will contain the name of
* the customer sitting there.
*/
public static int findMostOccupiedRow(String [][] names) {
int rowReturn = 0;
int highest = 0;
for(int row = 0; row
int count = 0;
for(int seat = 0; seat
if(!names[row][seat].equals(""))
count++;
}
if(count > highest) {
rowReturn = row;
highest = count;
}
}
return rowReturn;
}
/*
* This method should go through the array of seats and return how many seats are free (empty).
* If a seat is empty the array at that row column will contain "" (an empty string).
*
* This method should return the number of free seats.
*/
public static int getNumberOfFreeSeats(String [][] seats) {
int count = 0;
for (int i1 = 0; i1
for (int j = 0; j
if(seats[i1][j].equals(""))
count++;
}
}
return count;
}
/*
* This method should return the name of the tallest customer in the theater.
* The row/column in the array of heights corresponds to the row/column of the name
* of each customer.
* The arrays are guaranteed to be the same size.
*/
public static String getTallestCustomer(int [][] heights, String [][] names) {
int tallest = 0;
String name = "";
for (int i=0; i for (int j=0; j if (heights[i][j] > tallest) { tallest = heights[i][j]; name = names[i][j]; } } } return name; } /* * This method searches the theater for a place to put a new customer. * It searches an entire row before moving to the next row. * i.e. It starts at row 0, column 0, then moves to row 0, column 1, and does not move to row 1 until it has searched * all of row 0. * A height of -1 in the heights array, or a name of "" in the names array means there is no customer in a seat (you * do not have to check for both conditions). * * When it finds an empty seat, it puts the customer there if: * the customer is not more than 3 units taller than the alien in the seat behind (row - 1) the empty seat and * the alien in front of that seat (row + 1) is not more than three units taller than the customer. * * To place a customer, change the heights and names arrays to hold the customer's height and name. * Return true if a seat was found for the customer (the arrays were changed). * Return false otherwise. * * */ public static boolean putCustomerInEmptySeat(String name, int height, int [][] heights, String[][]names) { for (int i = 0; i for (int j = 0; j if ((heights[i][j] == -1) && (heights[i - 1][j] + 3 >= height) && (heights[i + 1][j] heights[i][j] = height; names[i][j] = name; return true; } } } return false; } /** * This method returns the average height of all the patrons in the theater. * If you get an error that says you returned NaN it means you divided by zero. */ public static double getAverageHeight(int [][] heights) { int sum = 0; int count = 0; for (int i=0; i for (int j=0; j if (heights[i][j]!=-1) { sum += heights[i][j]; count++; } } } if (count==0) return 0.0; double average = (double) sum / count; return average; } /** * This method should first compute the average height, and then it should go through * the array of heights and create a space separated String with all of the names of customers with heights * that are above average. * You are allowed to have a trailing space. * Example for this input (heights are in parenthesis) * This is the input (heights are in parenthesis): * column 0 | column 1 | column 2 | column 3 | column 4 | column 5 | column 6 | column 7 | column 8 * ------------------------------------------------------------------------------------------------------------------------------------------------------ * row 0 [ Qbycaj(81) | Plfnc(26) | Qkome(35) | (-1) | Smilreqoh(83) | Awvnmloiw(43) | (-1) | Cgaaa(100) | Blaladl(99) ] * * The average height is 66.71428571428571 (so if your getAverageHeight doesn't yet work, don't try this method). * The expected return string is: * " Qbycaj Smilreqoh Cgaaa Blaladl" * OR * "Qbycaj Smilreqoh Cgaaa Blaladl " */ public static String getAllAboveAverageHeight(int [][] heights, String[][] names) { String a = ""; double average = getAverageHeight(heights); for (int i=0; i for (int j=0; j if (heights[i][j] > average) { a += names[i][j] + " "; } } } return a; } } CONSOLE (ERROR) 
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