By Alvin Alexander. Last updated: June 4, 2016 They have many different pages, but here is a high-level URL for Sun's online Java documentation. java My devdaily.com Java file utilities Java int - How do I add two integers? Java int FAQ - How to multiply two integers Java String concatenation: How to combine (merge) two Strings Java: How to round a double (or float) to two decimal places? (formatting output) books by alvin ZIO ZLayer: A simple “Hello, world” example (dependency injection, services) A dream vacation for the meditator in your life Al's Oasis Window of the Poet (painting) Shinzen Young on meditating in his daily life: arising, disappearing, and The Source, and love