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Ubuntu Unleashed 2014 Edition: Covering 13.10 and 14.04,Ninth Edition by Paul Hudson, Andrew Hudson, Matthew Helmke

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Java

Java was created by Sun Microsystems, now owned by Oracle, as a write-once, run-anywhere language. Java programs are compiled to a bytecode that will run on any JVM. A Java Virtual Machine (JVM) must exist on a hardware platform for Java code to run, but no recompilation of the program itself is needed for it to run on different hardware platforms. Java is object oriented, and writing program instructions for a virtual machine is generally easier than doing so for a real machine. Java syntax is similar to C and C++ but is a bit simpler and has fewer low-level abilities. It is currently one of the most popular programming languages. Originally, Java technology was proprietary and licensed for use by Sun. In May 2007, several years before ...

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