Cell.class

class Cell {

    private int number;
    private char type;

    public Cell(int number, char type){
        this.number = number;
        this.type = type;
    }

    public Cell(char type){
        this.number = 0;
        this.type = type;
    }

    public void setNumber(int number){
        this.number = number;
    }

    public int getNumber(){
        return this.number;
    }

    public void setType(char type){
        this.type = type;
    }

    public int getType(){
        return this.type;
    }

    public String toString(){
        return "" + this.type;
    }

}