1、类图 随意写个类 然后new model 选个model新建 然后直接把写好的类拖进model 自动生成类图

2、领养宠物并输出宠物信息

package com.opp.unit3.demo8; /**  * Created by 渣渣飞 on 2018/6/11 20:12  * 星期一  * FDF  */ public class Dog {
      public String name;     public int age;     public String brand;     public String getName() {
          return name;     }     public void setName(String name) {
          this.name = name;     }     public int getAge() {
          return age;     }     public void setAge(int age) {
          this.age = age;     }     public String getBrand() {
          return brand;     }     public void setBrand(String brand) {
          this.brand = brand;     }     public Dog() {
          name="狗";         age=2;         brand="傻狗";     }     public void showInfo() {
          System.out.println("名字" + name +"年龄"+age+"种类"+brand);     } }

package com.opp.unit3.demo8; /**  * Created by 渣渣飞 on 2018/6/11 20:12  * 星期一  * FDF  */ public class Test {
      public static void main(String[] args) {
          Dog dog=null;         dog=new Dog();         dog.showInfo();     } }

package com.opp.unit3.pratice; /**  * Created by 渣渣飞 on 2018/6/11 20:52  * 星期一  * FDF  */ public class Student {
      private String name;     private int age;     private String grender;     public String getName() {
          return name;     }     public void setName(String name) {
          this.name = name;     }     public int getAge() {
          return age;     }     public void setAge(int age) {
          if (age > 16) {
              this.age = age;         } else {
              System.out.println("输入错误！");         }     }     public String getGrender() {
          return grender;     }     public void setGrender(String grender) {
          this.grender = grender;     }     public void show() {
          System.out.println("姓名：" + name + "年龄" + age + "性别" + grender);     } }

package com.opp.unit3.pratice; import java.util.Scanner; /**  * Created by 渣渣飞 on 2018/6/11 21:03  * 星期一  * FDF  */ public class Test {
      public static void main(String[] args) {
          Student stu=null;         stu=new Student();         Scanner scanner=new Scanner(System.in);         System.out.println("请输入姓名：");         String name=scanner.next();         stu.setName(name);         System.out.println("请输入年龄：");         int age=scanner.nextInt();         stu.setAge(age);         System.out.println("请输入性别：");         String grender=scanner.next();         stu.setGrender(grender);         stu.show();     } }

package com.opp.unit4.demo1; /**  * Created by 渣渣飞 on 2018/6/12 21:09  * 星期二  * FDF  */ public abstract class Car {
      /**      * 无参方法赋值！      */     protected static String number;     protected static String brade;     public Car() {
          number = "AU8769";         brade = "大奔";     }     /**      * 带参方法      *      * @param number      * @param brade      */     public Car(String number,  String brade) {
          this.number = number;         this.brade = brade;     }     public double pay(int days,int type){
          return 0;     } }

package com.opp.unit4.demo1; import java.util.Random; import java.util.Scanner; /**  * Created by 渣渣飞 on 2018/6/12 21:07  * 星期二  * FDF  */ public class MyMain {
      public static void main(String[] args) {
          Scanner scanner = new Scanner(System.in);         SaloonCar saloonCar= new SaloonCar();         PassengerCar passengerCar = new PassengerCar();         Random random = new Random();         int randomNum=random.nextInt(1000);         System.out.println("欢迎来到汽车租赁");         /**          * 天数          * 类型          *          */         System.out.println("请输入您要租赁的天数");         int day=scanner.nextInt();         System.out.println("请输入要租赁的汽车类型(1,轿车  2,客车)");         int che = scanner.nextInt();         if (che == 1) {
              System.out.println("请输入要租赁汽车品牌(1,宝马  2,别克)");             int xin = scanner.nextInt();             if (xin == 1) {
                  System.out.println("请输入轿车的型号(1,商务舱GL8   2,林荫大道)");                 int xinhao = scanner.nextInt();                 System.out.println("您好,分配给您的汽车牌号是:京KU" + randomNum);                 double money = saloonCar.pay(day, che); // 得到费用                 System.out.println("顾客你好！你需要支付的租赁金额为：" + money);             }             if (xin == 2) {
                  System.out.println("请输入轿车的型号(1,商务舱GL8   2,林荫大道)");                 int xinhao = scanner.nextInt();                 System.out.println("您好,分配给您的汽车牌号是:鲁LD" + randomNum);                 double money = saloonCar.pay(day, che); // 得到费用                 System.out.println("顾客你好！你需要支付的租赁金额为：" + money);             }         }         if (che == 2) {
              System.out.println("请输入要租赁客车的品牌(1.金杯  2.金龙)");             int pin = scanner.nextInt();             System.out.println("请输入客车的座位数");             int ke = scanner.nextInt();             System.out.println("您好,分配给您的汽车牌号是:京KU" + randomNum);             double money = passengerCar.pay(day, che); // 得到费用             System.out.println("顾客你好！你需要支付的租赁金额为：" + money);         }     } }

package com.opp.unit4.demo1; /**  * Created by 渣渣飞 on 2018/6/12 21:09  * 星期二  * FDF  */ public class PassengerCar extends Car {
      private int seatCount;     /**      * 无参的构造      */     public PassengerCar() {
          seatCount = 23;     }     public PassengerCar(int seatCount) {
          super(number, brade);         this.seatCount = seatCount;     }     public int gettype() {
          return seatCount;     }     public double pay(int days, int type) {
          double money = 0;         if (type > 16) {
              money = days * 1000;         } else {
              money = days * 500;         }         return money;     } }

package com.opp.unit4.demo1; /**  * Created by 渣渣飞 on 2018/6/12 21:10  * 星期二  * FDF  */ public class SaloonCar extends Car {
      private String type;     /**      * 无参构造      */     public SaloonCar() {
          type = "商务舱";     }     public SaloonCar(String type) {
          super(number, brade);         this.type = type;     }     public String getType() {
          return type;     }     /**      * 租金      */     public double pay(int days, int type) {
          double money = 0;         switch (type) {
              case 1:                 money = days * 500;                 break;             case 2:                 money = days * 600;                 break;             case 3:                 money = days * 300;                 break;             default:                 System.out.println("输入错误");         }         return money;     } }