Hello++++ is a simple programming language, which has one command:
Hello Worldprints "Hello World".
Hello++++ is fully Non-Turing-complete, that's why programmers love it! Hello++++ is also easy to learn.
Hello++++ is based on Hello++ which is based on Hello. Hello++++ is different from Hello++ because it interprets the program like input, which makes it able to create a cat-program. However, it has a longer command for "Hello World", making the code for it longer than in Hello++ and Hello, which makes it worse for code golf competitions.
The "Hello World"-program is written
The Quine-program is simply written
(because it prints itself)
The Cat-program is simply written
(because Hello++++ uses the program as input)