java基礎作業三

(1)定義以下這些接口和類,並完成相關屬性和方法的聲明和調用.數據類型,參數列表,返回值類型等請根據題目需要自行定義.
學習接口Learning(包含方法: 預習preLearn,上課lessons,複習reveiw)
喝酒接口Drinking(包含方法: 喝酒drink, 吐throwup,耍酒瘋playMad)
抽象類Person(包含屬性:姓名,性別,年齡; 抽象方法:談戀愛love)
學生Student是人,得會學習,但不能喝酒(因爲會使大腦變笨);他們還有自己的學校(school),還喜歡和朋友聊微信(chatting).
公務員Officer是人,不用學習,但經常需要喝酒應酬;他們還得經常開一些無聊的會議(meeting).
程序猿Programmer,是人,必須經常學習,較少社交所以不喝酒;他們特別喜歡寫代碼(coding),和修bug(debuging).

(2)在場景類Client中定義一個方法method1,在形參和實參上體現對象的多態性,在方法中進行調用,如果對象的實際類型是學生,
就和朋友聊微信;如果是公務員,就去開會;如果是程序猿,就去寫代碼和修bug.

(3)直接打印一個學生對象,就能以下面格式來輸出:
學生信息: 姓名:張三,性別:男,年齡:20,學校:北大.
(4)如果兩個學生的姓名、性別、年齡、學校一樣，則認爲這兩個學生“相等”。

該程序主要聯繫面向對象所學的抽象類、接口以及多態的使用！

代碼如下：

package week4homeworks;
/**
 * 
 * @author LYB
 *人類抽象類
 */
public abstract class Person {
    private String name;
    private String sex;
    private int age;

    public Person() {

    }

    public Person(String name, String sex, int age) {
        super();
        this.name = name;
        this.sex = sex;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public abstract void love();

}
package week4homeworks;
/**
 * 
 * @author LYB
 *學生類
 */
public class Student extends Person implements Learing {
    private String school;

    public Student(String name, String sex, int age, String school) {
        super(name, sex, age);
        this.school = school;

    }

    public String getSchool() {
        return school;
    }

    public void setSchool(String school) {
        this.school = school;
    }

    public void Learing() {

    }

    public void chatting() {
        System.out.println("使用微信聊天...");
    }

    @Override
    public void preLearn() {
        System.out.println("正在預習...");

    }

    @Override
    public void lessions() {
        System.out.println("正在上課...");

    }

    @Override
    public void review() {
        System.out.println("正在複習...");

    }

    @Override
    public void love() {
        System.out.println("正在談戀愛！");

    }

    public boolean equals(Object obj) {
        if (this == obj) {
            System.out.println("自己跟自己比，當然相等！");
            return true;
        }
        if (obj == null) {
            System.out.println("參數爲null,不相等");
            return false;
        }
        if (!(obj instanceof Student)) { // 傳遞的參數是否屬於Student類
            System.out.println("傳遞的不是Student對象");
            return false;
        }
        Student stu = (Student) obj; // 向下轉型
        if (this.getSchool() != null && this.getName() != null
                && this.getName().equals(stu.getName())
                && this.school.equals(stu.school)
                && this.getAge() == stu.getAge()) {
            return true;
        }
        return false;
    }

}
package week4homeworks;
/**
 * 
 * @author LYB
 *公務員類
 */
public class Officer extends Person implements Working, Drinking {
    private String company;

    public void meeting() {
        System.out.println("開無聊的會議...");
    }

    public String getCompany() {
        return company;
    }

    public void setCompany(String company) {
        this.company = company;
    }

    public Officer() {
        super();
        this.company = company;
    }

    @Override
    public void drink() {
        System.out.println("應酬喝酒...");

    }

    @Override
    public void throwup() {
        System.out.println("喝酒太多導致嘔吐...");

    }

    @Override
    public void playMad() {
        System.out.println("喝醉了耍酒瘋...");

    }

    @Override
    public void work() {
        System.out.println("正在處理公務...");

    }

    @Override
    public void makemoney() {
        System.out.println("正在努力賺錢...");

    }

    @Override
    public void love() {
        System.out.println("正在與女友約會談戀愛...");

    }

}

package week4homeworks;
/**
 * 
 * @author LYB
 *程序員類
 */
public class Programmer extends Person implements Learing, Working {
    private String company1;

    public String getCompany1() {
        return company1;
    }

    public void setCompany1(String company1) {
        this.company1 = company1;
    }

    public void coding() {
        System.out.println("正在敲代碼...");
    }

    public void bug() {
        System.out.println("正在debuging...");
    }

    @Override
    public void preLearn() {
        System.out.println("正在預習新的計算機編程知識...");

    }

    @Override
    public void lessions() {
        System.out.println("正在上課學習新的計算機編程知識...");

    }

    @Override
    public void review() {
        System.out.println("正在複習自己所學的計算機編程知識...");

    }

    @Override
    public void love() {
        System.out.println("正在與女友談戀愛...");

    }

    @Override
    public void work() {
        System.out.println("正在努力編程...");

    }

    @Override
    public void makemoney() {
        System.out.println("正在努力賺錢...");

    }

    public Programmer() {
        super();
        this.company1 = company1;
    }

}
package week4homeworks;
/**
 * 
 * @author LYB
 *工作接口
 */
public interface Working {
    public void work();

    public void makemoney();
}
package week4homeworks;
/**
 * 
 * @author LYB
 *學習接口
 */
public interface Learing {
    public void preLearn();

    public void lessions();

    public void review();
}
package week4homeworks;
/**
 * 
 * @author LYB
 *喝酒接口
 */
public interface Drinking {
    public void drink();

    public void throwup();

    public void playMad();
}
package week4homeworks;
/**
 * 
 * @author LYB
 *各個類型的人的場景主類
 */
public class Client {

    public static void main(String[] args) {
        Student stu = new Student("張三", "男", 16, "西安高級中學");
        // stu.setSchool("西安高級中學");
        Officer off = new Officer();
        Programmer pro = new Programmer();

        clientMethod(null);
        clientMethod(stu);
        clientMethod(off);
        clientMethod(pro);

    }

    private static void clientMethod(Person per) {
        if (per == null) {
            System.out.println("不能直接傳遞null!");
            return;
        } else if (per instanceof Student) {
            Student stu = (Student) per;
            // stu.setName("張三");
            // stu.setAge(16);
            // stu.setSex("男");
            // stu.setSchool("西安高級中學");
            System.out.println(stu.getName() + "," + stu.getSex() + "，年齡"
                    + stu.getAge() + ",就讀於" + stu.getSchool());
            System.out.print(stu.getName());
            stu.chatting();
            System.out.print(stu.getName());
            stu.preLearn();
            System.out.print(stu.getName());
            stu.lessions();
            System.out.print(stu.getName());
            stu.review();
            System.out.print(stu.getName());
            stu.love();

        } else if (per instanceof Officer) {
            Officer off = (Officer) per;
            off.setName("李強");
            off.setAge(25);
            off.setSex("男");
            off.setCompany("西安市政府");
            System.out.println(off.getName() + "," + off.getSex() + "今年"
                    + off.getAge() + "是" + off.getCompany() + "的一名公務員！");
            System.out.print(off.getName());
            off.work();
            System.out.print(off.getName());
            off.meeting();
            System.out.print(off.getName());
            off.makemoney();
            System.out.print(off.getName());
            off.drink();
            System.out.print(off.getName());
            off.playMad();
            System.out.print(off.getName());
            off.throwup();
            System.out.print(off.getName());
            off.love();
        } else if (per instanceof Programmer) {
            Programmer pro = (Programmer) per;
            pro.setName("李四");
            pro.setAge(30);
            pro.setSex("男");
            pro.setCompany1("騰訊科技");
            System.out.println(pro.getName() + "," + pro.getSex() + ",今年"
                    + pro.getAge() + "歲了," + "在" + pro.getCompany1() + "上班！");
            System.out.print(pro.getName());
            pro.work();
            System.out.print(pro.getName());
            pro.coding();
            System.out.print(pro.getName());
            pro.bug();
            System.out.print(pro.getName());
            pro.makemoney();
            System.out.print(pro.getName());
            pro.preLearn();
            System.out.print(pro.getName());
            pro.lessions();
            System.out.print(pro.getName());
            pro.review();
            System.out.print(pro.getName());
            pro.love();

        }

    }

}
package week4homeworks;
/**
 * 
 * @author LYB
 *比較兩個學生是否爲同一個人，主類
 */
public class CompareStudent {

    public static void main(String[] args) {
        Student stu1 = new Student("張三", "男", 20, "西安中學");
        Student stu2 = new Student("張三", "男", 20, "西安中學");
        // stu1.setSchool("西安中學");
        // stu2.setSchool("西安中學");
        boolean flag = stu1.equals(stu2);
        System.out.println(flag);
    }

}
package week4homeworks;
/**
 * 
 * @author LYB
 *打印一個學生具體信息，主類
 */
public class PrintStudent {

    public static void main(String[] args) {
        Student stu = new Student("小雨", "女", 18, "西工大附中");
        // stu.setName("小雨");
        // stu.setAge(18);
        // stu.setSex("女");
        // stu.setSchool("西工大附中");
        System.out.print(stu.getName() + "," + stu.getSex() + "今年"
                + stu.getAge() + "歲了," + "就讀於" + stu.getSchool());

    }

}