Chapter 3.2, Problem 12SCP

Explanation of Solution

Given program:

//Create a class

public class Temperature

{

    //Define the method

    public static void main(String[] args)

    {

        //Declare and initialize the variable

        double tempf =98.6;

        double tempc=0.0;

        //Call the method

        ftoc(tempf , tempc) ;

        //Print the value of tempc

System.out.println("Body temp in C is : "+tempc);

    }

/*Define the method that converts Fahrenheit temperatures to Celsius*/

    public static void ftoc (double tempf , double tempc )

    {

        //Calculate the value of tempc

        tempc=(tempf-32)*5/9;

    }

}

Mistake:

• The value of “tempc” is changed inside the scope of “ftoc()” function and this does not affect the value of the variable “tempc” in the scope of “main()” function.

Correction:

• The given program produces the output as,

Body temp in C is : 0.0

• The highlighted part in the given program denotes the value of “tempc” in “main()” function...