Println(): println() method is a static method and it is called on out variable. Object creation is not required to call static members. out is a static variable that can be accessed with a class name directly. Out: out is an instance of PrintStream class. That means reading and printing the values on to the console. System: It is a class in java.lang package and it works with standard input and output streams.
Understand " public static void main()" which is already discussed in previous articles.Īnd also need to understand "()". But, Every program needs not to have a main() method and it is optional. If a java program has main() method means that the main() method will be invoked by JVM when you run it.
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