Building this regular expression with replaceAll

[Francesco Marchioni]

Hi all,
I'm having problems in building a regular expression
that transforms negative numbers.

I need to put a single quote around negative numbers.
That is:

String formula = "SWITCH: case 1: method1() case -1: exit()";

should become:

"SWITCH: case 1: method1() case '-1': exit()";

Does anybody know how to obtain it with replaceAll() ?
Thanks a lot
Francesco

[Alan Moore]

I already answered this question over at the Java Forums.

Tsk, tsk!