day-0-hello-world.java

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {
   public static void main(String[] args) {
      Scanner scan = new Scanner(System.in); // use the Scanner class to read from stdin
      String inputString = scan.nextLine(); // read a line of input and save it to a variable
      scan.close(); // close the scanner
      
      // Your first line of output goes here
      System.out.println("Hello, World.");
      
      // Write the second line of output
      System.out.println(inputString); 
   }
}