OOP作业

Posted 2020-06-19 柒寒

1，定义一个水果类(fruit),水果类中的有
【属性】：颜色(color)、价格(price)、重量(weigth),
再定义一个<测试类>,
创建一个苹果(apple)的对象, 颜色是"红色",价格是5.5,重量10g。
然后再创建一个香蕉(banana)的对象,颜色是"黄色",价格是4.2,重量5g。
最后输出：
苹果的颜色、价格、重量、
香蕉的颜色、价格、重量、

编写代码如下：

定义水果类：

 1 package org.hanqi.pn0120;
 2 
 3 public class Fruit {
 4     
 5     private String color;
 6     private double price;
 7     private int weight;
 8     public String getColor() {
 9         return color;
10     }
11     public void setColor(String color) {
12         this.color = color;
13     }
14     public double getPrice() {
15         return price;
16     }
17     public void setPrice(double price) {
18         this.price = price;
19     }
20     public int getWeight() {
21         return weight;
22     }
23     public void setWeight(int weight) {
24         this.weight = weight;
25     }
26 }

定义测试类：

 1 package org.hanqi.pn0120;
 2 
 3 public class TestFruit {
 4 
 5     public static void main(String[] args) {
 6         
 7         Fruit apple = new Fruit();
 8         apple.setColor("红色");
 9         apple.setPrice(5.5);
10         apple.setWeight(10);
11         System.out.println("苹果的颜色是："+apple.getColor()+" ,价格是："+apple.getPrice()+" ,重量是："+apple.getWeight()+"g");
12         Fruit banana = new Fruit();
13         banana.setColor("黄色");
14         banana.setPrice(4.2);
15         banana.setWeight(5);
16         System.out.println("香蕉的颜色是："+banana.getColor()+" ,价格是："+banana.getPrice()+" ,重量是："+banana.getWeight()+"g");
17     }
18 }

则运行结果为：

2、定义一个人类,人类中有以下属性:姓名(name),性别(sex),年龄(age),再定义一个测试类
创建一个"张三"的对象
姓名：张三
性别：男
年龄：20
创建一个"李四"的对象
姓名：李四
性别：女
年龄：21
最后输出张三与李四的信息

编写代码如下：

定义一个人类：

 1 package org.hanqi.pn0120;
 2 
 3 public class Human {
 4     
 5     private String name;
 6     private String sex;
 7     private int age;
 8     public String getName() {
 9         return name;
10     }
11     public void setName(String name) {
12         this.name = name;
13     }
14     public String getSex() {
15         return sex;
16     }
17     public void setSex(String sex) {
18         this.sex = sex;
19     }
20     public int getAge() {
21         return age;
22     }
23     public void setAge(int age) {
24         this.age = age;
25     }
26     public Human(String name, String sex, int age) {
27         super();
28         this.name = name;
29         this.sex = sex;
30         this.age = age;
31     }
32     public void human()
33     {
34         System.out.println("姓名："+this.name+" ，性别："+this.sex+" ，年龄："+this.age);
35     }
36 }

再定义一个测试类：

 1 package org.hanqi.pn0120;
 2 
 3 public class TestHuman {
 4 
 5     public static void main(String[] args) {
 6         
 7         Human zhangsan = new Human("张三","男",20);
 8         zhangsan.human();
 9         Human lisi = new Human("李四","女",21);
10         lisi.human();
11     }
12 }

则运行结果为：

3、定义一个桌子类,属性有：材料、编号、价格,再定义一个测试类,在测试类中分别创建两张桌子,分别给他们赋值，最后输出

编写代码如下：

定义一个桌子类：

 1 package org.hanqi.pn0120;
 2 
 3 public class Desk {
 4     
 5     private String stuff;
 6     private int number;
 7     private double price;
 8     public String getStuff() {
 9         return stuff;
10     }
11     public void setStuff(String stuff) {
12         this.stuff = stuff;
13     }
14     public int getNumber() {
15         return number;
16     }
17     public void setNumber(int number) {
18         this.number = number;
19     }
20     public double getPrice() {
21         return price;
22     }
23     public void setPrice(double price) {
24         this.price = price;
25     }
26 }

再定义一个测试类：

 1 package org.hanqi.pn0120;
 2 
 3 public class TestDesk {
 4 
 5     public static void main(String[] args) {
 6             
 7         Desk desk1 = new Desk();
 8         desk1.setStuff("木制");
 9         desk1.setNumber(9527);
10         desk1.setPrice(666);
11         System.out.println("第一张桌子的材质是："+desk1.getStuff()+"，编号是："+desk1.getNumber()+"，价格是："+desk1.getPrice());
12         Desk desk2 = new Desk();
13         desk2.setStuff("铁制");
14         desk2.setNumber(27149);
15         desk2.setPrice(233);
16         System.out.println("第二张桌子的材质是："+desk2.getStuff()+"，编号是："+desk2.getNumber()+"，价格是："+desk2.getPrice());        
17     }
18 }

运行结果为：

4、写一个传奇游戏中的猪类，类中有属性：颜色(color)、重量(weight)、攻击力(attack)、准确度(accuracy)。再写一个测试类，生成一个猪的对象，将此猪的颜色值为“白色(white)”，重量为5，攻击力为50点，准确度为0.8。要求输出此猪的信息格式为：一只白色的猪，重量5，攻击为50点血，准确度为0.8，我好怕怕呀

编写代码如下：

定义一个猪类：

 1 package org.hanqi.pn0120;
 2 
 3 public class Pig {
 4     
 5     private String color;
 6     private int weight;
 7     private int attack;
 8     private double accuracy;
 9     public String getColor() {
10         return color;
11     }
12     public void setColor(String color) {
13         this.color = color;
14     }
15     public int getWeight() {
16         return weight;
17     }
18     public void setWeight(int weight) {
19         this.weight = weight;
20     }
21     public int getAttack() {
22         return attack;
23     }
24     public void setAttack(int attack) {
25         this.attack = attack;
26     }
27     public double getAccuracy() {
28         return accuracy;
29     }
30     public void setAccuracy(double accuracy) {
31         this.accuracy = accuracy;
32     }
33     public Pig(String color, int weight, int attack, double accuracy) {
34         super();
35         this.color = color;
36         this.weight = weight;
37         this.attack = attack;
38         this.accuracy = accuracy;
39     }
40     public void pig()
41     {
42         System.out.println("一只"+this.color+"的猪，重量"+this.weight+"，攻击力为"+this.attack+"点血，准确度为"+this.accuracy+",我好怕怕呀");
43     }
44 }

再定义测试类：

 1 package org.hanqi.pn0120;
 2 
 3 public class TestPig {
 4 
 5     public static void main(String[] args) {
 6         
 7         Pig pig = new Pig("白色",5,50,0.8);
 8         pig.pig();
 9     }
10 }

则运行结果为：