Java <span title="relatedSystem.out.println()">relatedSystem.out.println...</span>

Question

System.out.println()

above ,how a variable(out) can call the method(println)................

Answer 1

&quot;out&quot; is not a variable, but a class name and println is a method in the class &quot;out&quot;, System is the namespace.

to give you and idea, heres a the class structure(as far as my knowledge is concern..heheh)

namespace System

{

    class out

   {

     public void println(String str)

     {

          ......

     }

   }

}

hope this helps...

Answer 2

System.out refers to a static member of the System class. System.out (along with System.in and System.err) is of type java.io.PrintStream, which has a method (actually, several overloaded methods) called println().