PPT Slide

Box shoeBox = new Box();

Box cdBox = new Box();

Box present = new Box();

The data fields (“attributes”):

int iLength;

int iWidth;

int iHeight;

What can be done to that data(“methods”):

public void setLength (int iNewLength)

public int getLength ( )

public void setWidth (int iNewWidth)

public int getWidth ( )

public void setHeight (int iNewHeight)

public int getHeight ( )

public int getVolume ( )

shoeBox

The data fields (“attributes”):

int iLength;

int iWidth;

int iHeight;

What can be done to that data(“methods”):

public void setLength (int iNewLength)

public int getLength ( )

public void setWidth (int iNewWidth)

public int getWidth ( )

public void setHeight (int iNewHeight)

public int getHeight ( )

public int getVolume ( )

cdBox

The data fields (“attributes”):

int iLength;

int iWidth;

int iHeight;

What can be done to that data(“methods”):

public void setLength (int iNewLength)

public int getLength ( )

public void setWidth (int iNewWidth)

public int getWidth ( )

. . .

present

Each time we instantiate

a Box, therefore, we get a unique copy to work with. This is one of the most powerful aspect of Object-Oriented Programming!

Objects & References