Java Code

Lab 4 –

Part A: Create a program that demonstrates multi- class calls that results in a stack where there are at least 3 methods on the stack other than main. Your program should have at least 2 heap objects.

Method3()

Object1

Method2()

Object2

Main()

Method1()

Stack Heap

Part B: Create a program or extend part so that you create a constructor for one of the object class that is different from the default. Also, the constructor must be overloaded so the there are two different ways that the object can be initialized.

The below code is an EXAMPLE of how to set up constructor overloading for the box class.

You should replace box with your own class.

Do not submit this example as your lab

// Java program to illustrate

// Constructor Overloading

class Box

{

double width, height, depth;

// constructor used when all dimensions

// specified

Box(double w, double h, double d)

{

width = w;

height = h;

depth = d;

}

// constructor used when no dimensions

// specified

Box()

{

width = height = depth = 0;

}

// constructor used when cube is created

Box(double len)

{

width = height = depth = len;

}

// compute and return volume

double volume()

{

return width * height * depth;

}

}

// Driver code

public class Test

{

public static void main(String args[])

{

// create boxes using the various

// constructors

Box mybox1 = new Box(10, 20, 15);

Box mybox2 = new Box();

Box mycube = new Box(7);

double vol;

// get volume of first box

vol = mybox1.volume();

System.out.println(" Volume of mybox1 is " + vol);

// get volume of second box

vol = mybox2.volume();

System.out.println(" Volume of mybox2 is " + vol);

// get volume of cube

vol = mycube.volume();

System.out.println(" Volume of mycube is " + vol);

}

}