Java \ Pattern - how to write a pattern that verifies the lack of a string?

Question

I tried from https://docs.oracle.com/javase/1.5.0/docs/api/java/util/regex/Pattern.html.

I have

Pattern PATTERN = Pattern.compile(\"agg{0}.*\");
Matcher         


        

Answer 1

Simple alternative:

if (!csv.startsWith("agg") {
  // do something
}