class Transition{    public double probability;    public int toVertex;    public boolean isLocked;    public Transition(int toVertex, double probability)    {	this.toVertex = toVertex;	this.probability = probability;	isLocked = false;    }    public Transition(int toVertex, double probability, boolean isLocked)    {	this.toVertex = toVertex;	this.probability = probability;	this.isLocked = isLocked;    }    public double getProbability()    {	return probability;    }    public int getToVertex()    {	return toVertex;    }    public void setProbability(double newProb)    {	probability = newProb;    }        public boolean isLocked()    {	return isLocked;    }    public void lock()    {	isLocked = true;    }    public void unLock()    {	isLocked = false;    }}