System.out.println()---in this printing statement why we use (.)i.e dot inbetween ?

[anu401]

System.out.prin tln()---in this printing statement why we use (.)i.e dot inbetween system.out and out.println?
please reply
this question was asked in viva session

[sukatoa]

System is a class,

when putting a dot after the System, i means to say if the System class has a static field or method, you may use it through System."static_ field/method"

The System has a PrintStream called out, it is public so it can be invoked.

So,

System.out = PrintStream instance

By looking to PrintStream class

there's a public static method named println

when you call that method(with parameters), it will just simply print the parameter into stream(@console )

[sukatoa]

Similar to that is

PrintStream ps = new PrintStream(Sys tem.out);
ps.println("Wel come to the world of ideas");

[anu401]

thank you for your answer sir/madam