How to make this never ending loop stop!

Question

Somewhere in this code where im printing stars, i have a loop that i cant stop from continuing. The instrucitons say set the line<=30 and that i set line = 5 in the for loop. Im supposed to get a pyramid shape of stars made with 5 lines. IT should be adding by 2's at it goes down, such as 1,3,5,etc... Here is a picture of it.
import chn.util.*;
public class Pictures
  void printTable(int rows,int columns)
  {   for (int row = 1; row <= rows; row++)
   for (int col = 5; col <= columns; col++)
   System.out.println ( );
void pyramid (int n)
   int line, spaces, stars, loop;
   for (line = 5; line <=30; line--)
      spaces = line - 1;
      for (loop = 1; loop <= spaces; loop++)
         System.out.print (" "); // print a blank space
      stars = n- line + 2;
      for (loop = 1; loop <= stars; loop++)
         System.out.print ("*");
   System.out.println();
   public static void main (String[ ] args)
      Pictures pic = new Pictures ( );
      ConsoleIO keyboard = new ConsoleIO ( );
      String get;
      pic.printTable (4, 6);
      get = keyboard.readLine ( ); // freezes the output screen to see the picture
      pic.printTable (11,12);
      get = keyboard.readLine ( );
      pic.pyramid (10);
      get = keyboard.readLine ( );
      pic.pyramid(25);
      get = keyboard.readLine ( );
}

Answer 1

for (line = 5; line <=30; line--)line will be 5, then 4, then 3, 2, 1, 0, -1, -2, ...
And you'll keep going as long as it's <= 30. That is, it will stop when line > 30.
How will line ever be > 30 following that pattern? (Well, it will, when it wraps from Integer.MIN_VALUE to Integer.MAX_VALUE.)
You need to change your initial value or your terminating condition or your increment step. Up to you to figure out what's appropriate for what you're trying to do.