Java program to print a numeric pattern.

class pattern
{
public static void main(String args[])
{
int n=1,a;
for(int i=1;i<=10;i++)
{
 for(int j=1;j<=n;j++)
{
a=i*j;
System.out.print(" "+a);
}
n=n+1;
System.out.println();
}
}
}
............................................................................
output-
1
2 4
3 6 9
4 8 12 16
5 10 15 20 25
6 12 18 24 30 36
7 14 21 28 35 42 49
8 16 24 32 40 48 56 64
9 18 27 36 45 54 63 72 81
10 20 30 40 50 60 70 80 90 100