April 05
Prof. Ismael H. F. Santos
- ismael@tecgraf.puc-rio.br
2
Interfaces e Classes
Abstratas
n Classes Abstratas em Java
public abstract class Drawing
{
public abstract void draw();
public abstract BBox getBBox();
public boolean contains(Point p) {
BBox b = getBBox();
return (p.x>=b.x &&
p.x<b.x+b.width &&
p.y>=b.y &&
p.y<b.y+b.height);
}
...
}