Java or C++

Create a function that prints out a triangle of stars given a, b, and c. Start with "a" number of stars and continue adding "c" number of stars until you get at least "b" total number of stars.Then print them in reverse. For example, when given a=4, c=3 and b=12 you get:

Also, how do I edit a question if it has no edit button? I also had someone answer another question but did not give an answer and I would like to reopen it

4 14 14 4