Java String delimited

Question

I want to split the string into delimiter "|" in Java and get an array of String, here is my code:

String str = "123|sdf||";
String[] array = str.split("\\|");

I'll get an array with two elements: "123","sdf". I expect the array has 4 elements "123","sdf","","":; Is there any existing class that I can use for this? I also tried StringTokernizer, not working

Answer 1

The method split()has a secret, optional second parameter!

String[] array = str.split("\\|", -1); // won't discard trailing empty elements

By default split()(with one parameter) discards the final empty elements from the result.

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javadoc.