Answer Posted / gov@

println() is method belongs to the printstream class.
How we can call a method in java? using object of the class to which the method belongs to.now out is the object of the printstream class,so we can call println() method using out.println(),now System.out.println(),here system is the class name [we know static members of a class can be accessed using classname.methodname or classname.members)since out is not a method so the object can be declared as a static variable of System class.

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