Hi Radha
java/j2ee scene in Singapore is really good, & increasing day by day.
i dont have detailed knowledge , but just FYI, two majors players in BFSI (Banking, Financial Services & Insurance) domain - Citibank & Credit Suisse - they are hiring at large - lots of openeings across levels/platforms. There are many other comps hiring too.
For 5 yrs you can fetch 45-55K SD, depending upon your skillset, urgency of the requirement & your negotiation power
cheers !