What is System.out.println

What is System.out.println() ?

//Code is start from here
import java.io.*;

//Kapil will Replace the System
class Kapil 
{
//shukla will Replace the out
public static PrintStream shukla = new PrintStream(System.out);
}

class Txt
{
          public static void main(String args[])
{
           // Kapil.shukla can be used in place of System.out
           Kapil.shukla.println("Hello World");
}
}

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