'system' is a public class which is final which can never
be extended..It itself extends object.
'out' is the static object of the class PrintStream.
'println()' is the method of printStream class..
since 'out' is a static object it can be called by using
the class name'system'
> pre-defined class in java.lang package
out- it is a static variable inside System class of type PrintStream(class reference variable)
(ie) static PrintStream out;
and PrintStream is a predefined class in java.io package.
since its static thats why we are calling
so System.out means we are getting the reference to the object of type PrintStream
println is the method in PrintStream class for Standard output stream.
so to access println method , i need PrintStream object which we are getting through System.out.
its System.out.println---- to produce standard output Stream
System : It is a standard java class. It comes from the
java.lang package. it is bydefault package.
Out : The class system contains static field named "out".
so System.out referes to the value stored in that static
filed. the value System.out is an object of the class
printStream from the standard java package java.io.
Println() : it is the instance method come from the
so System.out.println() calls the "Println()" method
associated with the "printStream" object referred to by
static field "out"
'System' is a class in 'java.lang' package, which is a
final class(can not be inherited) and its constructor is
private(can not be inherited)
'out' is a static member variable of 'System' class which
is of type 'PrintStream'
'println()' is a method of 'PrintStream' class
So 'System.out.println()' means calling of method 'println
()'of the static 'PrintStream' type variable 'out'
of 'System' class.
And is used to print a String to the system console.