How to use method String.split

I am spliting a string, just like "1a|24|3|4". My code is
String[] array = new String[10];
String buff = "1|2|3|4";
array = buff.split("|");
System.out.println(array[1]);
I think that the result should be "24", but the result always
is "1". Why? When I use String.split(",") to split a string "1a,24,3,4",
I can get the result "24". Can't "|" be used as a delimiter? Who can
explain this issue? Thanks.

Hi
The argument of split is a "regular expression" instead any common string with delimiters as used in StringTokenizer.
The char "|" is named as "branching operator" or "alternation"..doesn't matter this moment.
If you must to use "|" in source strings, change the regular expression to "\\D", it means "any non numeric char":
// can use any delimiter not in range '0'..'9'
array = buff.split("\\D");
Regards.

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