Printing Pattern Using Nested Loop

I built a java code to print the following pattern using nested loop:

1 2 3 4 5 6 7 8 7 6 5 4 3 2 1
1 2 3 4 5 6 7 6 5 4 3 2 1
1 2 3 4 5 6 5 4 3 2 1
1 2 3 4 5 4 3 2 1
1 2 3 4 3 2 1
1 2 3 2 1
1 2 1
1

And here is my code

public static void main(String[] args) {
for(int i=1; i<=8;i++)
{
for(int k=1;k<=i;k++)
{
System.out.print(" ");

[Code] .....

which gives the partially true output:

123456781
123456721
123456321
123454321
123454321
123654321
127654321
187654321

I couldn't figure out how to place the spaces.I have made some changes on the code, but it didn't work.