Can anyone help me solve this Java problem?

Can anyone solve this Java problem?

Write an algorithm + a program that will allow us to display the following output:

N=1

*

N=2

**

*

N=3


**

*

and so on…….

Now modify the above program so that it now displays the following output:

N=1

*

N=2

**

*

N=3


**

*

and so on…….

Stuck on first part itself