Question

Define a class to declare an array of size 20 of the double datatype, accept the elements into the array and perform the following:

• Calculate and print the sum of all the elements.
• Calculate and print the highest value of the array.

Answer 1

import java.util.Scanner; 
public class MaxSum 
{
     public static void main(String args[])
     {
         Scanner in = new Scanner(System.in);
         double arr[] = new double[20]; 
         System.out.println("Enter 20 numbers:"); 
         for (int i = 0; i < 20; i++)
         {
             arr[i] = in.nextDouble();
         }
         int max = arr[0], sum = 0;
         for (inti= 0; i <arr.length; i++)
        {
             if (arr[i] >max)
                  max = arr[i]; 
             sum += arr[i]; 
        }
        System.out.println("Largest Number = " +max); 
        System.out.println("Sum = " +sum); 
    }
}