What happens when java program starts?

Question

Recently have been touched Java classloaders and suddenly recognized that do not fully understand what happens step-by-step when someone calls

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Answer 1

Your example shows an executable jar, which is simply a normal java archive (jar) with an extra key/value pair in it's manifest file (located in folder "META_INF"). The key is "Main-Class" and the value the fully qualified classname of that class whose "main" method will be executed, if you "run" the jar just like in your example.

A jar is a zip file and you can have a look inside with every zip archive tool.