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Healthcare Information Technology Exam Guide for CompTIA Healthcare IT Technician and HIT Pro Certifications by Brian Gugerty, Kathleen McCormick

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The Java Language

Java is an object-oriented programming language originally created by Sun Microsystems. The language syntax is very similar to C or C++, but Java has a simpler object model and fewer low-level facilities.3 To design a Java program, all source code is first edited in plain-text files with .java as the file extension. The programmer can use any text editor (e.g., Adobe Dreamweaver, Microsoft WordPad, Notepad, or TextPad) to edit the codes. Those source files are then compiled into .class files by a Java compiler. The .class file contains bytecodes, which are the machine language of the Java Virtual Machine (Java VM or JVM). Then, the just-in-time code generator converts the bytecode into the native machine code, which is at the ...

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