Question

(JAVA) 7.12 LAB: Miles to track laps

One lap around a standard high-school running track is exactly 0.25 miles. Write a program that takes a number of miles as input, and outputs the number of laps.

Output each floating-point value with two digits after the decimal point, which can be achieved as follows: System.out.print f("%.2 f", yourValue);

Ex: if the input is.

1.5

the output is:

6.00

Ex: if the input is:

2.2

the output is:

8.80

Answer 1

Below is the program. As per the requirement, the track length is 0.25 miles. So multiplying the track length with 4 will make it one mile. So 4 laps are equal to one mile.

/*
* Program to convert miles to laps.
*
*/
import java.util.Scanner;

public class LabProgram {
  
   /*
   * Method to convert the miles to laps.
   * It takes input parameter userMiles and returns laps.
   * @param - double userMiles
   */
   public static double milesToLaps(double userMiles)
   {
       double laps = userMiles * 4;
       return laps;
   }
  
   public static void main(String[] args)
   {
       /*Code to call the milesToLaps() method*/
       System.out.print("Enter the Number of Miles :");
       Scanner in = new Scanner(System.in);
       double miles = in.nextDouble();
       double laps = milesToLaps(miles);
       System.out.printf("Number of laps: %.2f",laps);
      
   }

}

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output:

Run the program from eclipse. Right click on the program then click "Run As" > "Java Application".

Program ask for input of miles . Given1.5 for example below. output is displayed as 6.00

Enter the Number of Miles :1.5
Number of laps 6.00

Answer 2

3.14 LAB: Track laps to miles

One lap around a standard high-school running track is exactly 0.25 miles. Define a method named lapsToMiles that takes a double as a parameter, representing the number of laps, and returns a double that represents the number of miles. Then, write a main program that takes a number of laps as an input, calls method lapsToMiles() to calculate the number of miles, and outputs the number of miles.

Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
System.out.printf("%.2f\n", yourValue);

Ex: If the input is:

7.6

the output is:

1.90

Ex: If the input is:

2.2

the output is:

0.55

The program must define and call a method:
public static double lapsToMiles(double userLaps)