private static void approach1()
{
Console.WriteLine("APPROACH 1");
Speedometer1 speedo = new Speedometer1();
speedo.CurrentSpeed = 50;
speedo.CurrentSpeed = 100;
Console.WriteLine("Current speed: " + speedo.CurrentSpeed);
Console.WriteLine("Previous speed: " + speedo.previousSpeed);
// Save the state of 'speedo'
SpeedometerMemento1 memento = new SpeedometerMemento1(speedo);
// Change the state of 'speed'
speedo.CurrentSpeed = 80;
Console.WriteLine("After setting to 80...");
Console.WriteLine("Current speed: " + speedo.CurrentSpeed);
Console.WriteLine("Previous speed: " + speedo.previousSpeed);
// Restore the state of 'speedo'
Console.WriteLine("Now restoring state...");
memento.RestoreState();
Console.WriteLine("Current speed: " + speedo.CurrentSpeed);
Console.WriteLine("Previous speed: " + speedo.previousSpeed);
}
public SpeedometerMemento1(Speedometer1 speedometer)
{
this.speedometer = speedometer;
copyOfCurrentSpeed = speedometer.CurrentSpeed;
copyOfPreviousSpeed = speedometer.previousSpeed;
}
public SpeedometerMemento1(Speedometer1 speedometer)
{
this.speedometer = speedometer;
copyOfCurrentSpeed = speedometer.CurrentSpeed;
copyOfPreviousSpeed = speedometer.previousSpeed;
}