Eclipse, the popular Java integrated development environment (IDE) provides an elegant and powerful remedy for this common, frustrating scenario. It doesn't just catch your errors before you compile, it also suggests solutions. All you need to do is point and click. And it's free - what could be better? Still, if you're like most programmers, mastering a newtechnology--no matter how productive it will make you in the long run - is going to take a chunk out of your productivity now. You want to get up to speed quickly without sacrificing efficiency.