regex - Java split string by whitespace and punctuation but include only punctuation in result -


hello-world how you?

should result in

hello - world how  ?

this code tried

string str = "hello-world how you?"; arrays.stream(str.split("\\b+")).foreach(system.out::println);

you can use regex splitting:

string str = "hello-world how you?"; arrays.stream(str.split("\\p{javawhitespace}+|(?=\\p{p})|(?<=\\p{p})")).foreach(system.err::println);

here \\p{z}+|(?=\\p{p})|(?<=\\p{p}) splits on unicode whitespace or of lookaheads asserts if previous or next character punctuation character.

regex demo

output:

hello - world how ?

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