import java.util.*;
public class planeSeating {
    public static void main(String args[]) {
      int i, j;
      int seatType, seatRow, seatCol;
      int count = 0;                                        //Count used to count up all the taken seats
      Scanner in = new Scanner(System.in);
      char[][] plane = new char[13][6];
      for(i=0; i<plane.length; i++){                    //Filling the array with all * for graphical purposes
        for(j=0; j<plane[0].length; j++){
            plane[i][j]='*';
        }
      }
      output(plane);                                        //Printing the seat map

      do{
      System.out.print("\nWhich class would you like?");
      System.out.print("\n1 for First Class \n2 for Economy\n0 to Exit\nYour Choice: ");
      seatType = in.nextInt();
      if(seatType==1){                                  //First Class
            seatRow=rowIn(in);                          //Choosing Row
            while(seatRow>1){                               //Checking if First Class rows are chosen
                System.out.print("\nWrong class");
                seatRow=rowIn(in);}
            seatCol=colIn(in);                          //Choosing seat
            if(plane[seatRow][seatCol]!='X'){       //Testing if seat is taken
                plane[seatRow][seatCol]='X';            //and marking seat as taken if empty
                count++;                                        //and printing seat map
                output(plane);}
            else                                                //Error if seat is taken
                System.out.print("\nSeat taken, please try again");
        }
        else if(seatType==2){                           //Economy Class
            seatRow=rowIn(in);                          //Choosing Row
            while(seatRow<2){                               //Checking if Economy Class rows are chosen
                System.out.print("\nWrong class");
                seatRow=rowIn(in);}
            seatCol=colIn(in);                          //Choosing seat
            if(plane[seatRow][seatCol]!='X'){       //Testing if seat is taken
                plane[seatRow][seatCol]='X';            //and marking seat as taken if empty
                count++;                                        //and printing seat map
                output(plane);}
            else                                                //Error if seat is taken
                System.out.print("\nSeat taken, please try again");
        }
        if(count == 76){                                                        //Checking count of all the seats
            System.out.println("\n\nAll seats taken, sorry");       //If all are taken, the program exits
            seatType=0;}

}while(seatType!=0);
}
public static void output(char[][] plane){
int i, j;
System.out.printf("        A B C   D E F");
      for(i=0; i<plane.length; i++){
       System.out.printf("\nRow "+ "%2s ", (i+1));
        for(j=0; j<plane[0].length; j++){
            if(j == 6)                                                  //Next line after 6 columns
                System.out.println(plane[i][j]);
            else if(j==3)                                               //Space between the middle seats
                System.out.printf("%4s", plane[i][j]);
            else
                System.out.printf("%2s", plane[i][j]);
        }
}
}
public static int rowIn(Scanner in)
{
    System.out.println("\nWhich row would you like?");
    int row=in.nextInt();
    while(row<1 || row>13){                                     //Error checking of the row is on the plane
        System.out.print("\nInvalid selection. Please try again: ");
        row=in.nextInt();}
    return (row-1);
}
public static int colIn(Scanner in)
{
    System.out.println("\nWhich seat would you like?");
    System.out.println("1=A|2=B|3=C|4=D|5=E|6=F|");
    int col=in.nextInt();
    while(col<1 || col>6){                                      //Error checking of the row is on the plane
        System.out.print("\nInvalid selection. Please try again: ");
        col=in.nextInt();}
    return (col-1);
}
}