Briefly describe how parameter passing by value and by reference are accomplishe

Question

Briefly describe how parameter passing by value and by reference are accomplished in memory. Write statement 1 to call Method A below. Write statement 2 to call Method B. Which method uses pass by value? Which method uses pass by reference?

static void
Main()
{
double max = 2000;
double difference = 0;
//statement 1
//statement 2
}

//method A
public static double calcDifference (double
max)
{
return (6000.00 - max);
}

//method B
public static void calcDifference(double
max, ref double
difference)
{
difference = 6000 - max;

Explanation / Answer

//method A
public static double calcDifference (double // this is pass by value
max)
{
return (6000.00 - max);
}

//method B
public static void calcDifference(double
max, ref double
difference)      // this is pas by reference.
{
difference = 6000 - max;

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