Button

public class Button {
int num;
int size;
String color;

public Button(int num) {
    this.num = num;
    this.size = 5;
    this.color = "black";
}

public Button(int num, int size, String color) {
    this.num = num;
    this.size = size;
    this.color = color;
}

public int getSize() {
    return size;
}

public void addToSize(int x) {
    this.size += x;
}

public boolean isSameSize(Button other) {
    if(this.size == other.getSize())
        return true;
    return false;
}
}