[Advanced-java] Regular Expressions

[Jan-Oliver Wuelfing]

Hello Java-Community,

I would like to know whether I can use Regular Expressions in nearly 
every Java-Functions, e.g.:
for (z = ro_cand.lastIndexOf("Storage"); z < ro_cand.length(); z++) {
	if ("[0-9]" == ro_cand.charAt(z)) {
		com_str = ro_cand.substring(z, ro_cand.indexOf("#", z));
		}
	}
Where I want to check if at the specific position z occurs any kind of 
number.
Do you have any advice for me how I can use REs in any function?

Many thanks in advance
  Jan
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