Which came first, Google or Java?

Java came first, by 3 years. Sun Microsystems announced Java publicly.

Side by side

Google

The date used here is the incorporation, 4 September 1998. Two others compete: the research project called BackRub began at Stanford in 1996, and the google.com domain was registered on 15 September 1997. Google itself has celebrated its birthday on four different September dates over the years, which is a fair indication that no single one is correct. It is younger than Amazon, eBay and Netflix.

Java

Java was announced in May 1995, having started in 1991 as a project called Oak aimed at interactive television — a market that did not exist yet. Its promise was "write once, run anywhere", achieved by compiling to bytecode for a virtual machine rather than to a specific processor. JavaScript arrived seven months later and was named after it purely as a marketing decision; the two languages are unrelated.