Question

the spin method simulates a spin of a fair spinner. the method returns a random integer between min and max, inclusive. complete the spin method below by assigning this random integer to result./** precondition: min < max* simulates a spin of a spinner by returning a random integer* between min and max, inclusive\.\*/public int spin(int min, int max){int result;return result;}

Answer 1

The spin method generates a random integer between a specified minimum and maximum range. The method uses an instance of the Random class and its nextInt method to generate the random integer within the range, inclusive, by taking into account the range's spread.

Step-by-step explanation:

The student is tasked with completing a Java method called spin, which simulates the spin of a fair spinner by generating a random integer between a minimum (min) and a maximum (max) value, inclusive. To accomplish this, the method needs to assign a random integer within the specified range to the variable result. In Java, this can be done using the Random class from the java.util package.

Here's a step-by-step explanation of how to complete the method:

1. Import the Random class by adding import java.util.Random at the beginning of your code file.
2. Create an instance of the Random class inside the spin method.
3. Use the nextInt method of the Random class instance to generate a random number, with the difference between max and min plus one as the bound, and add the min to ensure the result is within the range.
4. Assign the generated random number to the result variable.
5. Return the result.

The completed spin method will look like this:

public int spin(int min, int max) {
Random rand = new Random();
int result = rand.nextInt((max - min) + 1) + min;
return result;
}

Answer 2

The given code is a method called spin which simulates a spin of a fair spinner. It takes two parameters min and max, representing the minimum and maximum values of the spinner. The method returns a random integer between the minimum and maximum values.

Step-by-step explanation:

The given code is a method called spin which simulates a spin of a fair spinner. It takes two parameters min and max, representing the minimum and maximum values of the spinner. The method returns a random integer between the minimum and maximum values. To complete the spin method, we just need to assign the random integer to the variable result.

The updated code will be:

public int spin(int min, int max) {
int result = (int)(Math.random() * (max - min + 1)) + min;
return result;
}

In this code, Math.random() generates a random decimal number between 0 and 1. By multiplying it with the range difference (max - min + 1) and adding the minimum value, we can obtain a random integer within the specified range.