Why the program getting error if we don't use String args[]
in main(), even in the case of not getting any arguments
from command line?

Answer / mehtaashish

First of all an in appropriate main method will not cause any
compile time error, it results in a runtime exception. The
reason for this is that the main method's signature is written
as such in Java specification. And all the interpreters and
compiler and constructed while keeping language specification
in mind. So whenever we try to run a program JVM looks for
"public static void main(String args[])" for starting
execution. And if it does not find any main method, it throws
the "NoClassDefFoundException".

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