[SalesForce] Replacing multiple consecutive spaces with Pipe character

Split in Apex is very similar to Java string split.

the pattern you pass to the split method is not a direct match, its a REGEX pattern. so the pipe symbol | is considered as a Regex input and it splits the string into individual characters.

You can use the below code to get thru this

newString.split('\\|')

here's some other discussions around the same topic

https://stackoverflow.com/questions/6978901/splitting-a-string-using

and a blog post from Lacey on the same topic

Try with this:

String regEx = 'Main-[a-zA-Z0-9- ]*-Accepted';

Copy and Paste Code:

String regEx = 'Main-[a-zA-Z0-9- ]*-Accepted';
System.debug(' @@@@@@ Main-NOT SUBMITTED-Accepted '+Pattern.matches(regEx,'Main-NOT SUBMITTED-Accepted'));
System.debug(' @@@@@@ Main-NOT-SUBMITTED-Accepted '+Pattern.matches(regEx,'Main-NOT-SUBMITTED-Accepted'));
System.debug(' @@@@@@ Main-NOT$-SUBMITTED-Accepted '+Pattern.matches(regEx,'Main-NOT$-SUBMITTED-Accepted'));
System.debug(' @@@@@@ Main45NOT-SUBMITTED-Accepted '+Pattern.matches(regEx,'Main45NOT-SUBMITTED-Accepted'));