Program to display a particular pattern of stars using nested for loops.

class NestedForDemo
{
    public static void main(String args[])
    {
        int i , j , num ;
        num = 6 ;         //value of num is between 1 to 10
        for (i=1 ; i<=num ; i++)
        {
            for (j=1 ; j<=i ; j++)
                System.out.print("*\t");
            System.out.println(" ");
        }
    }
}