Onsite Questions: How does Java GC work, how to implement a GC. Using random numbers to determine value of PI(3.1518926..), and how to let it work in multi-computer environment. "tom" has "salad soup sandwich", "rose" has "drink soup". Input "salad sandwich" return "tom rose". Given a software package depend list, like a->b, b->c, b->d, c->e, d->e, return installation sequence e,c,d,b,a. Design database tables of Yelp. What happens after sending an HTTP get request to yelp.com. Questions about software engineering and previous projects. Why yelp.
