java - incompatible types: possible lossy conversion from double to int (high school hw) -

hello taking high school class , need help. getting error mentioned in title. here code (i supposed make random numbers people guess 0 , need let them know if theyre close , how close theyre)

    import javax.swing.joptionpane;     public class p5g     {         public static void main(string[] arg)         {             string width = joptionpane.showinputdialog("how many rows     want?");                     string length = joptionpane.showinputdialog("how many columns want?");         int lol = integer.parseint( width );         int wow = integer.parseint( length );         int[][]gameboard = new int[lol][wow];          int[] nums = new int[lol*wow];         for(int =0; < nums.length; i++)         {              nums[i]=(int)100*math.random();         }          string row = joptionpane.showinputdialog("choose row");                 string col = joptionpane.showinputdialog("choose column");         int ro = integer.parseint( row );         int co = integer.parseint( col );      } } 

the math.random return double

so rather casting int try

new double (100*math.random()).intvalue ();