October 2021
Intermediate to advanced
131 pages
1h 34m
English
A member in a subclass can redefine a member in its superclass. This is most often done to give instance methods new implementations.
Overriding Methods
In the following example, Rectangle’s getArea method
is overridden in Triangle by redeclaring it there with the same method signature. The signature includes the name, parameters, and return type of the method. However, the access level may be changed to allow for more access than the method being overridden.
class Rectangle
{
public int w = 10, h = 10;
public int getArea() { return w * h; }
}
class Triangle extends Rectangle
{
