I am confuse what is .out in "System.out.println();"?

Answer 1

//It's explained in this course
https://www.sololearn.com/learn/Java/2137/

if you fill problem again after this try me mentioning your doubt here

Answer 2

System is a class, println() is a method , But why we use .out Stream ??

Answer 3

out is member variable in class System, there is stored PrintStream object
System {
public static final PrintStream out;
}

//try this
java.io.PrintStream s = System.out;
s.println( s ); // java.io.PrintStream@4617c264

Answer 4

so what is the propose of .out PrintStream object in this statement ??

Answer 5

output stream object provides a way how to send data to system resources like files on a hard disk, display, printer ...
https://howtodoinjava.com/java/io/how-java-io-works-internally-at-lower-level/