Java基础编程题目——编写Cat类和Dog类继承Animal类

╰半夏微凉° 2023-07-18 06:46 104阅读 0赞

**所谓继承：是指可以让某个类型的对象获得另一个类型的对象的属性的方法**

public class text {
        
        public static void main(String[] args) {
        
            Cat cat = new Cat();
            Dog dog = new Dog();
    
            cat.setAge(6);            //继承会继承属性和方法
            cat.setName("大花猫");
    
            dog.setAge(8);
            dog.setName("大黑狗");
    
            cat.voice();
            cat.eat();
            cat.age();
    
            dog.voice();
            dog.eat();
            dog.age();
        }
    }
    
    class Animal {
                        //创建一个Animal类，封装属性，保留接口
        private String name;
        private int age;
    
        public void setName(String name) {
        
            this.name = name;
        }
    
        public String getName() {
        
            return name;
        }
    
        public void setAge(int age) {
        
            this.age = age;
        }
    
        public int getAge() {
        
            return age;
        }
    
        public void age() {
        
            System.out.println(this.getName() + age + "岁");
        }
    }
    
    class Cat extends Animal {
             //继承Animal类，extends关键字
        public void voice() {
        
            System.out.println(this.getName() + "喵喵叫");
        }
    
        public void eat() {
        
            System.out.println(this.getName() + "吃鱼");
        }
    
    }
    
    class Dog extends Animal {
             //继承Animal类，extends关键字
        public void voice() {
        
            System.out.println(this.getName() + "汪汪叫");
        }
    
        public void eat() {
        
            System.out.println(this.getName() + "吃骨头");
        }
    }