Question

java) write a program that takes command line argument and compute the average of their maximum and minimum. make sure there are command line arguments being passed before you attempt to compute anything

Answer 1

Code:

Output:

Note: pass command line arguments as space separated values.

Raw Code:

import java.util.*;
public class Avg {
   public static void main(String[] args) { // command line arguments are stored in String args[].
       // That's why i convert the every number in the String args[] array to double in this code.
       if(args.length == 0){ // If there is no commandline arguments are passed
           System.out.println("Please pass arguments");
       }
       else{
           double min=Double.parseDouble(args[0]); // Declaring minimum value as first number in array
           double max=Double.parseDouble(args[0]); // Declaring maximum value as first number in array
           int n = args.length; // Finding the length of the array
           for (int i=1;i<n;i++){
               double num = Double.parseDouble(args[i]); // Converting the number in String args[] array to double.
               if(num > max){ // Checking if the new number is greater then our max number or not.
                   max = num; // Changing the max value to num.
               }
               if(num < min){ // Checking if the new number is less then our min number or not.
                   min = num; // Changing the min value to num.
               }
           }
           double avg = (max + min)/2.0; // Calculating the average of max and min numbers in array.
           System.out.println("Average of maximum and minimum numbers is: " + avg); // Printing the average.
       }
   }
}