Simulate a circuit for controlling a hallway light that has switches at both ends of the hallway. Each switch can be up or down, and the light can be on or off. Toggling either switch turns the lamp on or off. Provide methods

public int getFirstSwitchState() // 0 for down, 1 for up
public int getSecondSwitchState()
public int getLampState() // 0 for off, 1 for on
public void toggleFirstSwitch()
public void toggleSecondSwitch()