Multiple Inheritance
In a programming language that does not support multiple inheritance of base classes, wrapper functions can be used to simulate it. Below is an example of part of a Java class that "inherits" from LinkedList and HashSet.
public class StackSet implements Stack, Set { private LinkedList stack; private HashSet set; public boolean push(Object o) { if (set.add(o)) return stack.push(o); else return false; } public Object pop { Object o = stack.pop; set.remove(o); return o; } public boolean contains(Object o) { return set.contains(o); } }Read more about this topic: Wrapper Function
Famous quotes containing the words multiple and/or inheritance:
“Combining paid employment with marriage and motherhood creates safeguards for emotional well-being. Nothing is certain in life, but generally the chances of happiness are greater if one has multiple areas of interest and involvement. To juggle is to diminish the risk of depression, anxiety, and unhappiness.”
—Faye J. Crosby (20th century)
“I call it our collective inheritance of isolation. We inherit isolation in the bones of our lives. It is passed on to us as sure as the shape of our noses and the length of our legs. When we are young, we are taught to keep to ourselves for reasons we may not yet understand. As we grow up we become the “men who never cry” and the “women who never complain.” We become another generation of people expected not to bother others with our problems.”
—Paula C. Lowe (20th century)