Question

Need this done is java program coding in the simplest way possible.

(Average speed in kilometers) Assume a runner runs 24 miles in 1 hour, 40 minutes, and 35 seconds. Write a program that displays the average speed in kilometers per hour. (Note that 1 mile is 1.6 kilometers.) 1.12

Answer 1

Hi, PFB the code.

I am assuming that input is being provided via STDIN. Also I have attached the sample output screenshot. Please get back to me in case of any doubt and upvote if it was helpful.

import java.io.Console;
import java.util.Scanner;

public class HelloWorld{

public static void main(String []args){

Scanner input = new Scanner(System.in);
System.out.println("Please enter the distance travelled(in miles)");
double distance = input.nextDouble();
System.out.println("You entered "+ distance +" miles");
System.out.println("Please enter the time taken travelled(in hours, minutes & seconds respectively)");
distance = distance*1.6;
double hours = input.nextDouble();
double minutes = input.nextDouble();
double seconds = input.nextDouble();
  
  
System.out.println("You entered "+ hours +"hours "+ minutes+ " minutes"+ seconds+" seconds.");
  
double time_in_hours = hours + (minutes)/60.0 + (seconds)/3600.0;
double average_speed = distance/time_in_hours;
System.out.println("The average speed is "+ average_speed);
  
  
}
}

$javac Hellolorld.java $java -Xmx128M -Xms16M Helloworld Please enter the distance travelled (in miles) You entered 24.0 miles Please enter the time taken travelled (in hours, minutes & seconds respectively) You entered 1.ehours 40.0 minutes35.0 seconds The average speed is 22.9e6379453189732 24 40 35