0_Hello_World.java

/**
 * Task
 * To complete this challenge, you must save a line of input from stdin to a variable, print Hello, World. 
 * on a single line, and finally print the value of your variable on a second line.
 *
 * 
 * Input Format
 * 
 * A single line of text denoting (the variable whose contents must be printed).
 * 
 * Output Format
 * 
 * Print Hello, World. on the first line, and the contents of on the second line.
 * 
 * Sample Input
 * 
 * Welcome to 30 Days of Code!
 * 
 * Sample Output
 * 
 * Hello, World. 
 * Welcome to 30 Days of Code!
 */
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) {
        // Create a Scanner object to read input from stdin.
		Scanner scan = new Scanner(System.in); 
		
		// Read a full line of input from stdin and save it to our variable, inputString.
		String inputString = scan.nextLine(); 

		// Close the scanner object, because we've finished reading 
        // all of the input from stdin needed for this challenge.
		scan.close(); 
      
		// Print a string literal saying "Hello, World." to stdout.
		System.out.println("Hello, World.");
      
	    // TODO: Write a line of code here that prints the contents of inputString to stdout.
        System.out.println(inputString);
	}
}