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// A simple savings account class.

class SavingsAccount

{

public double currBalance;

// A static point of data.

public static double currInterestRate = 0.04;

public SavingsAccount(double balance)

{

currBalance = balance;

}

}

If you were to create three instances of SavingsAccount as follows:

static void Main(string[] args)

{

Console.WriteLine("***** Fun with Static Data *****\n");

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8849CH05.qxd  10/22/07  1:34 PM  Page 154

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Dim s1 As new SavingsAccount(50);

Dim s2 As new SavingsAccount(100);

Dim s3 As new SavingsAccount(10000.75);

Console.ReadLine();

}

the in-memory data allocation would look something like Figure 5-5.

Figure 5-5.

Static data is allocated once and shared among all instances of the class.

Let’s update the SavingsAccount class to define two static methods to get and set the interest

rate value: