Exclusion in regexp

Question

I have a strings like:

{ "_id" : ObjectId( "4ebb9544e4b097b7e6617e1c" ), "_class" :

I need a strings like:

{ "_id" : "4ebb9544e4b097b7e6617e1c", "_class" :

How to make this conversion in java?

Answer 1

If you really know the exact form of the string, and the object-ID will always be hex like that, you can just do:

s = s.replaceAll("ObjectId\\( ([^)]+) \\)", "$1");