Why does "0".split("|") return two elements instead of one?

Question

Java string split: If I split "0" with delimiter "|" I expect array of one element as in ["0"]. But what I actually get is {"","0"}

How to fix this? Thanks

Answer 1

Argument to string split is a regex not a string. So pipeline symbol does not mean pipeline symbol. Why does String.split need pipe delimiter to be escaped?

Using "\\|" worked