Write a program to input speed in mph and time in hours and

Write a program to input speed (in mph) and time (in hours) and calculate distance=speed*time.

-->For Example: Sample data: if the user enters a speed of 65 mph and a time of 1.25 hours then distance=81.25 miles.

-Use input validation to make sure speed and time are positive.

Solution

DistanceTest.java

import java.util.Scanner;

public class DistanceTest {

  
   public static void main(String[] args) {
       double speed = 0;
       double time = 0;
       Scanner scan = new Scanner(System.in);
       while(speed<=0){
           System.out.println(\"Enter the speed (in mph): \");
           speed = scan.nextDouble();
       }
       while(time<=0){
           System.out.println(\"Enter the time (in hours): \");
           time = scan.nextDouble();
       }
       double distance=speed*time;
       System.out.println(\"distance=\"+distance+\" miles.\");

   }

}

Output:

Enter the speed (in mph):
65
Enter the time (in hours):
1.25
distance=81.25 miles.