Write a program that declares named constants to represent the number of inches, feet, and yards in a mile. also declare a variable to represent a number of miles and assign a value to it. compute and display, with explanatory text, the value in inches, feet, and yards. save the program as mileconversions. java.

// program in java.

// package

import java.util.*;

// class definittion

class MileConversions

{// main method of the class

public static void main (String[] args) throws java.lang.Exception

{

   try{

       // variables

       final double inc_mile = 63360.0;

   final double ft_mile = 5280.0;

   final double yd_mile = 1760.0;

// Scanner object to read input

   Scanner scr = new Scanner(System.in);

   System.out.print("Enter miles: ");

   // read miles from user

   miles = scr.nextDouble();

   //convert miles in inches,feet and yards

   System.out.printf("%.1f miles is %.1f inches, or %.1f feet, or %.1f yards.", miles, miles*inc_mile, miles*ft_mile, miles*yd_mile);

   }catch(Exception ex){

       return;}

}

}

Explanation:

Declare variable to store inches, feet and yards in one mile.Read the miles from  user with scanner object.Convert miles into inches, feet and yards.Print these  values.

Output:

Enter miles: 55                                                                                                            

55.0 miles is 3484800.0 inches, or 290400.0 feet, or 96800.0 yards.

system programmer option d is correct

because an operating system is software that manages computer hardware and system resources.