java - The primitive type int of FC_COLS does not have a field inBlockSize -

i getting error on laststartcol = fc_cols – inblocksize; , similar error laststartcol = economy_cols – inblocksize;. not sure teacher wants me statement.simple answers appreciated.

//determine laststartcol, last legal start column given block //size in row.

if(inrow < fc_rows)     laststartcol = fc_cols – inblocksize; else     laststartcol = economy_cols – inblocksize;   for(int startcol = 0; startcol <= laststartcol; startcol++) {     ... 

whole class:

public class airplane  { private seat [ ] [ ] seats; public static final int first_class = 1; public static final int economy = 2; private static final int fc_rows = 5; private static final int fc_cols = 4; private static final int economy_rows = 5; private static final int economy_cols = 6;  public airplane()  {     seats  = new seat[fc_rows][fc_cols];      (int i=0; i<fc_rows; i++) {         (int j=0; j<fc_cols; j++)          {             seats[i][j] = new seat(seat.window);         }         seats  = new seat[economy_rows][economy_cols];          (int x=0; x<economy_rows; x++) {             (int y=0; y<economy_cols; y++)              {                 seats[x][y] = new seat(seat.window);             }         }     } } public string tostring() {     string str = "";     (int i=0; i<fc_rows; i++) {         (int j=0; j<fc_cols; j++)          {             str= str + seats[i][j].tostring();         }         str = str + "\n";     }     return str; }     public string tostring2() {     string z = "";     (int x=0; x<economy_rows; x++) {         (int y=0; y<economy_cols; y++)          {             z= z + seats[x][y].tostring();         }         z = z + "\n";     }     return z; } private int findemptyblockinrow(int inrow, int inblocksize, int inseattype) {     int laststartcol;      //determine laststartcol, last legal start column given block //size in row.     if(inrow < fc_rows)         laststartcol = fc_cols – inblocksize;     else         laststartcol = economy_cols – inblocksize;       for(int startcol = 0; startcol <= laststartcol; startcol++)     {         ...          //starting @ startcol, check inblocksize consecutive seats //that empty , include seat type looking for. if //a seat block found, return startcol.           for(int = 0; < inblocksize; i++)         {             if (seats[inrow][startcol + i].isavailable()==true)               {                 int f = 0;                 f++;             }               if (seats[inrow][startcol + i].getseattype() == inseattype)             {                 int d = inseattype;             }              return laststartcol;         }      } }  } 

my understanding mistake typing.

try in line laststartcol = fc_cols - inblocksize; first remove - , again enter minus symbol keyboard.

do above line laststartcol = economy_cols - inblocksize;

or

try replace line of code below.

if(inrow < fc_rows)     laststartcol = fc_cols - inblocksize; else     laststartcol = economy_cols - inblocksize;