Errata

The reason a ushort can hold up to 65,535 is that 65,535 is a round
number in binary arithmetic (2^16).
->
The reason a ushort can hold up to 65,535 is that 65,536 is a round
number in binary arithmetic (2^16) and one bit is devoted to 0.

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semicolon, but that is not correct; leaving out the semicolon has no effect (see example 3-5)

the final line of code changed to:
short myShort = (short) myInt; // explicit conversion

this.hour = hour
->
this.hour = newHour

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Class1
->
Program

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GetTime(), all parameters changed to:

GetTime(ref int theHour, ref int theMinute, ref int theSecond) {

MyOtherClass inherits myValue from MyClass thus the definition of MyOtherClass

public class MyOtherClass : MyClass
{
Console.WriteLine("myInt: {0}", myInt);
}

NOW READS:

public class MyOtherClass : MyClass
{
Console.WriteLine("myInt: {0}", myValue);
}

Furthermore, all subsequent appearances of myInt in the Controlling Access section
HAVE BEEN CHANGED to myValue

Extend the interface by creating a new interface, IConvertible

NOW READS:
Extend the interface by creating a new interface, ICodeChecker

Extend the interface by creating a new interface IConvertible
->
Extend the interface by creating a new interface ICodeChecker

public delegate void SecondChangeEventHandler: (object clock...
->
public delegate void SecondChangeEventHandler (object clock...

theClock.SecondChanged += new Clock.SecondChangeHandler(TimeHasChanged);
->
theClock.SecondChanged += new Clock.SecondChangeEventHandler(TimeHasChagned);

theClock.SecondChanged += TimeHasChanged;
->
theClock.SecondChanged += new Clock.SecondChangeHandler(TimeHasChanged);

protected void btnCopy_Click
->
private void btnCopy_Click

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on page 392, btnCopy_Click was declared as:
private void btnCopy_Click(object sender, System.EventArgs e)
but now it's
protected void btnCopy_Click(object sender, System.EventArgs e)

One might get confused into thinking that they are 2 different event handlers.