Thread: void?

i was reading a tutorial and it was about classes. They declare sum things, well ill paste it

Code:

class Dog {
public:
    void setAge(int age);
    int getAge();
    void setWeight(int weight);
    int getWeight();
    void speak();
private:
    int age;
    int weight;
};

well wat does the void before setage and setweight mean?