Downloadable resources

I know someone fairly new to Java who is interested in continuing their Java education. However, they will have no internet access while they're not at school this summer and they don't really have enough money to buy a good book. Are there any good resources online that he could download to use over the summer? Links to .pdf files or (downloadable) tutorials or whatever would be appreciated.

[404 byte] By [JJCoolBa] at [2007-11-27 6:16:22]