public class Fraction
{
    private int flag; //числитель
    private int dig; //знаменитель
    
    public Fraction()
    {
    }
    
    public Fraction(int flag, int dig)
    {
        this.flag = flag;
        this.dig = dig;
    }
    
    private final Supplier<Integer> flagSupplier = () -> this.flag;
    private final Supplier<Integer> digSupplier = () -> this.dig;
    
    private final Consumer<Integer> flagConsumer = (flag) ->
    {
        this.flag = flag;
    };
    
    private final Consumer<Integer> digConsumer = (dig) ->
    {
        this.dig = dig;
    };
}