面向对象继承在许多编程语言中都是一种重要的技术,可以用于实现代码重用和扩展。以下是不同语言中面向对象继承的代码示例:
Java:
// Animal类作为父类,定义了基本属性和方法 public class Animal { private String name; private int age; public Animal(String name, int age) { this.name = name; this.age = age; } public void eat() { System.out.println(name + " is eating."); } public void sleep() { System.out.println(name + " is sleeping."); } } // Dog类继承自Animal类,并添加了新的属性和方法 public class Dog extends Animal { private String breed; public Dog(String name, int age, String breed) { super(name, age); this.breed = breed; } public void bark() { System.out.println(name + " is barking."); } }
Python:
# Animal类作为父类,定义了基本属性和方法 class Animal: def __init__(self, name, age): self.name = name self.age = age def eat(self): print(self.name + " is eating.") def sleep(self): print(self.name + " is sleeping.") # Dog类继承自Animal类,并添加了新的属性和方法 class Dog(Animal): def __init__(self, name, age, breed): super().__init__(name, age) self.breed = breed def bark(self): print(self.name + " is barking.")
c++:
// Animal类作为父类,定义了基本属性和方法 class Animal { private: std::string name; int age; public: Animal(std::string name, int age) { this->name = name; this->age = age; } void eat() { std::cout << name << " is eating." << std::endl; } void sleep() { std::cout << name << " is sleeping." << std::endl; } }; // Dog类继承自Animal类,并添加了新的属性和方法 class Dog : public Animal { private: std::string breed; public: Dog(std::string name, int age, std::string breed) : Animal(name, age) { this->breed = breed; } void bark() { std::cout << name << " is barking." << std::endl; } };
以上是三种不同语言中面向对象继承的代码示例。在这些示例中,父类通常包含了一些基本属性和方法,子类通过继承父类来获取这些基本功能,并且可以添加自己的属性和方法以实现扩展和定制化。
评论