Intellij-IDEA IDE is currently in a relatively good Java IDE, which has a lot of very practical features, such as the project code format reintegration, code automatic optimization, code automatic reconstruction, Ant, JUnit, etc., and it The support for Chinese is also very good. I have used it to do a few small projects. I feel very good. His only shortcomings are some of the fee, so that the VM is always the constant GC, which will make you feel some time. Ide's reaction is somewhat slow, but this is a small problem. A few days ago, I finally found the current new version 4.5. Hey, it seems to have added a new "Code Analysis" function, which can point out a lot of potential errors in the program, strongly recommended ~~~