Chapter 6.7, Problem 36SC

Explanation of Solution

Given Algorithm:

//Initialize the variable

double input = 0;

//Check the value is double

while (in.hasNextDouble())

{

    //Initialize the variable previous

    double previous = input;

    //Get the input from the user

    input = in.nextDouble();

    //Check whether the input equals to previous

   ...

Explanation of Solution

Solutions to overcome the problem:

One solution to overcome the above mentioned problem is to introduce a Boolean variable. It checks whether the loop is entered for the first time.

Algorithm after introducing the Boolean variable:

//Initialize the variable

double input = 0;

boolean first = true;

//Check the value is double

while (in.hasNextDouble())

{

    //Initialize the variable previous

    double previous = input;

    //Get the input from the user

    input = in.nextDouble();

    if (first)

    {

        //Assign false to the variable first