main () method must be public because the fact is that only the public static main (String []) method of public class can be run directly.
another explanation is that when you execute java MainClass at the terminal, only the MainClass method can be accessed with Public and Public, and
because no instance of the class has been created. The parameters of
terminal commands are string arrays, "java MainClass-a b" (["- a", "b"]) and so on, so parameters of type String [] are required.
as for the name main, it inherits from the convention of C language.
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sincerely ask for advice: < hr > I want to use node as the background to build a video streaming server. The front end is similar to Youku VOD. It can record the playback node function, and load the progress bar at any point (starting from the c...
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what does the code circled in the following picture mean? ...