.*any character (except for line terminators), repeated any number of times
javathe literal text java (case sensitive) .*any character (except for line terminators), repeated any number of times
kafkathe literal text kafka (case sensitive) \.the literal . (4610 / 568 / 2E16)
Kafkathe literal text Kafka (case sensitive) .*any character (except for line terminators), repeated any number of times
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string