Question

is it possible to .replaceAll() so that :

INPUT>

asd fs#{FIRST}l sdfj s#{SECOND}ijfio s#{THIRD}df o#{1}sj

OUTPUT>

asd fsFIRSTl sdfj sSECONDijfio sTHIRDdf o#{1}sj

This #\{[A-Za-z]+\} finds the whole #{aaa} but I don’t want to delete the text inside..

Answer 1

Of course, you can make use of capture groups: –

String str = "asd fs#{FIRST}l sdfj s#{SECOND}ijfio s#{THIRD}df o#{1}sj";
str = str.replaceAll("#\\{([A-Za-z]+)\\}", "$1");

If you want any explanation for this, do ask. I think, the code is self-explanatory.