Chapter 5.5, Problem 27SCP

Explanation of Solution

Given program:

//definition of "mystery" method

public static int mystery (Scanner console, int x)

{

    //declare the variable and get the value

    int y = console.nextInt ();

    //declare the variable and set the value

    int count = 0;

    //Point A

    //check "y" less than "x"

    while (y < x)

    {

        //Point B

        //check "y" is equal to 0

        if (y == 0)

        {

            //increment the value

            count++;

            //Point C

        }

        //declare the variable and get the value

        y = console.nextInt();

        //Point D

    }

    //Point E

    //return the value

    return count;

}

Categorization of each point:

	y < x	y == 0	count > 0
Point A	Sometimes	Sometimes	Never
Point B	Always	Sometimes	Sometimes
Point C	Always	Always	Always
Point D	Sometimes	Sometimes	Sometimes
Point E	Never	Sometimes	sometimes

Explanation:

• The variables “console” and “x” are the parameters and get their values from the call to the method...