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Since Java is object-oriented, programs are organized into modules called classes, which may have data in variables and subroutines called methods.
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class HelloWorld
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{ public static void main (String[] args)
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{ System.out.println("Hello World!");
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}
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}
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Each program is enclosed in a class definition.
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main() is the first method that is run.
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The notation class.method or package.class.method is how to refer to a public method (with some exceptions).
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Syntax is similar to C - braces for blocks, semicolon after each statement. One difference: upper and lower case matter!
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