Java Documents in CHM format

For studying from the  soft-copy format, I like CHM(Windows Help format) format to be more user-friendly.  And here ( is some chm java document which is given for free-download. The contents are as similar as in the sun website. I found it very much useful while working with Java; I hope it will help you too. As mention in website, It is in Windows Help format. But it can be open in Ubuntu also, if you install chm plugin. You can get the the installation steps here.