Day-1.java

import java.util.*;
public class Solution {
   
   public static void main(String[] args) {
        int i = 4;
        double d = 4.0;
        String s = "HackerRank ";
      
        Scanner scan = new Scanner(System.in);
        /* Declare second integer, double, and String variables. */
        int i2;
        double d2;
        String s2;
        
        /* Read and save an integer, double, and String to your variables.*/
        i2 = scan.nextInt();
        d2 = scan.nextDouble();
        scan.nextLine(); // read the rest of the line of input (newline character after the double token).
        s2 = scan.nextLine();
       
        /* Print the sum of both integer variables on a new line. */
        System.out.println(i + i2);

        /* Print the sum of the double variables on a new line. */
        System.out.println(d + d2);
      
        /* Concatenate and print the String variables on a new line integer variables on a new line; 
           the 'string` variable above should be printed first. */
        System.out.println(s + s2);
        
        scan.close();
   }
}