Reference for Processing (BETA) version 0149+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.
| Name | extends |
|---|---|
| Examples | DrawDot dd1 = new DrawDot(50, 80);
void setup() {
size(200, 200);
}
void draw() {
dd1.display();
}
class Dot {
int xpos, ypos;
}
class DrawDot extends Dot {
DrawDot(int x, int y) {
xpos = x;
ypos = y;
}
void display() {
ellipse(xpos, ypos, 200, 200);
}
} |
| Description | Allows a new class to inherit the methods and fields (data members) from an existing class. In code, state the name of the new class, followed by the keyword extends and the name of the base class. The concept of inheritance is one of the fundamental principles of object oriented programming. |
| Usage | Web & Application |
| Related | class super |
