Is code injection possible in Java?

Question

nowadays you can read much about code injection, exploits, buffer-, stack- and heap-overflows etc. leading to inject and run code. I wonder what of this stuff is relevant for Ja

Answer 1

You can't inject Java. But if you are not careful, people could inject Javascript (i.e. XSS as you mention) or SQL. There are heaps and stacks, but no way to get to them.