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:
“There is a continual exchange of ideas between all minds of a generation. Journalists, popular novelists, illustrators, and cartoonists adapt the truths discovered by the powerful intellects for the multitude. It is like a spiritual flood, like a gush that pours into multiple cascades until it forms the great moving sheet of water that stands for the mentality of a period.”
—Auguste Rodin (1849–1917)
“A child is born with the potential ability to learn Chinese or Swahili, play a kazoo, climb a tree, make a strudel or a birdhouse, take pleasure in finding the coordinates of a star. Genetic inheritance determines a child’s abilities and weaknesses. But those who raise a child call forth from that matrix the traits and talents they consider important.”
—Emilie Buchwald (20th century)