Java 設計鳥類Bird 魚類Fish 都繼承自抽象的動物類Animal， 實現其抽象方法Info 輸出各自信息

|--需求說明

Java  設計鳥類Bird  魚類Fish  都繼承自抽象的動物類Animal，  實現其抽象方法Info  輸出各自信息

 

|--實現思路

 

 

|--代碼內容

 1 /**
 2  * @auther:：9527  3  * @Description: 動物類  4  * @program: Port  5  * @create: 2019-07-17 22:22  6  */
 7 public abstract class Animal {  8     private String color;  9     private String type; 10     private int age; 11     private int weight; 12 
13     public String getColor() { 14         return color; 15  } 16 
17     public void setColor(String color) { 18         this.color = color; 19  } 20 
21     public String getType() { 22         return type; 23  } 24 
25     public void setType(String type) { 26         this.type = type; 27  } 28 
29     public int getAge() { 30         return age; 31  } 32 
33     public void setAge(int age) { 34         this.age = age; 35  } 36 
37     public int getWeight() { 38         return weight; 39  } 40 
41     public void setWeight(int weight) { 42         this.weight = weight; 43  } 44 
45     public abstract void info(); 46 }

抽象類---動物類

 1 /**
 2  * @auther:：9527  3  * @Description:  4  * @program: Port  5  * @create: 2019-07-17 22:32  6  */
 7 public class Fish extends Animal {  8  @Override  9     public String getColor() { 10         return super.getColor(); 11  } 12 
13  @Override 14     public void setColor(String color) { 15         super.setColor(color); 16  } 17 
18  @Override 19     public String getType() { 20         return super.getType(); 21  } 22 
23  @Override 24     public void setType(String type) { 25         super.setType(type); 26  } 27 
28  @Override 29     public int getAge() { 30         return super.getAge(); 31  } 32 
33  @Override 34     public void setAge(int age) { 35         super.setAge(age); 36  } 37 
38  @Override 39     public int getWeight() { 40         return super.getWeight(); 41  } 42 
43  @Override 44     public void setWeight(int weight) { 45         super.setWeight(weight); 46  } 47 
48  @Override 49     public void info() { 50         System.out.println("我是一條"+getWeight()+"重的"+getType()); 51         System.out.println("今年"+getAge()+"歲了"); 52  } 53 }

具體類--魚類

 1 /**
 2  * @auther:：9527  3  * @Description: 鳥類  4  * @program: Port  5  * @create: 2019-07-17 22:23  6  */
 7 public class Bird extends Animal {  8 
 9  @Override 10     public String getColor() { 11         return super.getColor(); 12  } 13 
14  @Override 15     public void setColor(String color) { 16         super.setColor(color); 17  } 18 
19  @Override 20     public String getType() { 21         return super.getType(); 22  } 23 
24  @Override 25     public void setType(String type) { 26         super.setType(type); 27  } 28 
29  @Override 30     public int getAge() { 31         return super.getAge(); 32  } 33 
34  @Override 35     public void setAge(int age) { 36         super.setAge(age); 37  } 38 
39  @Override 40     public int getWeight() { 41         return super.getWeight(); 42  } 43 
44  @Override 45     public void setWeight(int weight) { 46         super.setWeight(weight); 47  } 48 
49  @Override 50     public void info() { 51         System.out.println("我是一隻"+getColor()+"的"+getType()); 52         System.out.println("今年"+getAge()+"歲了"); 53  } 54 }

具體類--鳥類

 1 /**
 2  * @auther:：9527  3  * @Description: 測試類  4  * @program: Port  5  * @create: 2019-07-17 22:34  6  */
 7 public class Test {  8     public static void main(String[] args) {  9         //父類引用指向子類對象，把鳥類的對象賦值到父類Animal上面
10         Animal animal = new Bird(); 11         animal.setColor("紅色"); 12         animal.setType("鳥"); 13         animal.setAge(4); 14  animal.info(); 15 
16         System.out.println("\n****---****---****\n"); 17 
18         //父類引用指向子類對象，把魚類的對象賦值到父類Animal上面
19         Animal animal1 = new Fish(); 20         animal1.setWeight(5); 21         animal1.setType("魚"); 22         animal1.setAge(2); 23  animal1.info(); 24 
25  } 26 }

測試類

 

|--運行結果