【java学习】第六天(作业)

quange 2022-4-15 190 4/15

韩老师本章课程链接:https://www.bilibili.com/video/BV1fh411y7R8?p=343&spm_id_from=pageDriver

第一题

【java学习】第六天(作业)

代码

package com.quange.homework;

public class Homework01 {
    public static void main(String[] args) {
        Person[] people = new Person[4];
        people[0] = new Person("jack", 50, "java工程师");
        people[1] = new Person("tom", 20, "php工程师");
        people[2] = new Person("mary", 30, "大数据工程师");
        people[3] = new Person("change", 60, "c工程师");

        // 输出当前数组对象
        for (int i = 0; i < people.length; i++) {
            System.out.println(people[i]);
        }

        // 使用冒泡排序,按照年龄从大到小排序
        Person tmp = null; // 临时变量 用于交换
        boolean flag = true; // 标志是否完成排序,默认完成
        for (int i = 0; i < people.length -1; i++) {
            for (int j = 0; j < people.length -1 -i; j++) {
                if (people[j].getAge() < people[j+1].getAge()){
                    flag = false;
                    tmp = people[j];
                    people[j] = people[j+1];
                    people[j+1] = tmp;
                }
            }
            if (flag){
                break;
            }else {
                flag = true; // 重置flag ,进行下次判断
            }

        }
        System.out.println("=================排序后==============");
        // 输出当前数组对象
        for (int i = 0; i < people.length; i++) {
            System.out.println(people[i]);
        }
    }

    public static class Person{
        private String name;
        private int age;
        private String job;

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

        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 getJob() {
            return job;
        }

        public void setJob(String job) {
            this.job = job;
        }

        @Override
        public String toString() {
            return "Person{" +
                    "name='" + name + '\'' +
                    ", age=" + age +
                    ", job='" + job + '\'' +
                    '}';
        }
    }
}

输出

Person{name='jack', age=50, job='java工程师'}
Person{name='tom', age=20, job='php工程师'}
Person{name='mary', age=30, job='大数据工程师'}
Person{name='change', age=60, job='c工程师'}
=================排序后==============
Person{name='change', age=60, job='c工程师'}
Person{name='jack', age=50, job='java工程师'}
Person{name='mary', age=30, job='大数据工程师'}
Person{name='tom', age=20, job='php工程师'}

进程已结束,退出代码0

第二题

【java学习】第六天(作业)

【java学习】第六天(作业)

第三题

【java学习】第六天(作业)

代码

package com.quange.homework;

public class Homework03 {
    public static void main(String[] args) {
        Teacher teacher = new Teacher("quange", 40, "高级职称", 3000, 1.3);
        teacher.introduce();

    }

    // 父类 老师类
    static class Teacher{
        private String name;
        private int age;
        private String post;
        private double salary;
        private double grade;

        public Teacher(String name, int age, String post, double salary, double grade) {
            this.name = name;
            this.age = age;
            this.post = post;
            this.salary = salary;
            this.grade = grade;
        }

        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 getPost() {
            return post;
        }

        public void setPost(String post) {
            this.post = post;
        }

        public double getSalary() {
            return salary;
        }

        public void setSalary(double salary) {
            this.salary = salary;
        }

        public double getGrade() {
            return grade;
        }

        public void setGrade(double grade) {
            this.grade = grade;
        }

        public void introduce(){
            System.out.println("姓名:" + name + "年龄:" + age+ "职称:" + post + "基本工资:" + salary + " 职级:" + grade);
        }
    }

    // 子类教授类
    class Professor extends Teacher{
        public Professor(String name, int age, String post, double salary, double grade) {
            super(name, age, post, salary, grade);
        }

        // 重写父类的 introduce 方法

        @Override
        public void introduce() {
            super.introduce();
        }
    }
}

输出

姓名:quange年龄:40职称:高级职称基本工资:3000.0 职级:1.3

进程已结束,退出代码0

第四题

【java学习】第六天(作业)

代码

package com.quange.homework;

public class Homework04 {
    public static void main(String[] args) {
        Manager manager = new Manager("tom", 100, 20, 1.2);
        // 设置经理的奖金
        manager.setBonus(1000);
        // 打印经理工资情况
        manager.wages();

        Ordinary change = new Ordinary("change", 90, 25, 1.0);
        // 打印员工工资情况
        change.wages();
    }

    // 父类 员工
    static class Staff{
        private String name; // 姓名
        private double daily_wage; // 单日工资
        private int work_days;  // 工作天数
        private double grade; // 职级

        public Staff(String name, double daily_wage, int work_days, double grade) {
            this.name = name;
            this.daily_wage = daily_wage;
            this.work_days = work_days;
            this.grade = grade;
        }

        public String getName() {
            return name;
        }

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

        public double getDaily_wage() {
            return daily_wage;
        }

        public void setDaily_wage(double daily_wage) {
            this.daily_wage = daily_wage;
        }

        public int getWork_days() {
            return work_days;
        }

        public void setWork_days(int work_days) {
            this.work_days = work_days;
        }

        public double getGrade() {
            return grade;
        }

        public void setGrade(double grade) {
            this.grade = grade;
        }

        // 打印工资方法
        public void wages(){
            System.out.println("员工:"+ name + "工资为:" + (daily_wage * work_days * grade));
        }
    }

    // 子类 部门经理
    static class Manager extends Staff{
        private double bonus;

        public Manager(String name, double daily_wage, int work_days, double grade) {
            super(name, daily_wage, work_days, grade);
        }

        public double getBonus() {
            return bonus;
        }

        public void setBonus(double bonus) {
            this.bonus = bonus;
        }

        @Override
        public void wages() {
            System.out.println("经理:" + getName() + "工资为:" + ((getDaily_wage() * getWork_days() * getGrade() )+ bonus));
        }
    }

    // 子类 普通员工
    static class Ordinary extends Staff{
        public Ordinary(String name, double daily_wage, int work_days, double grade) {
            super(name, daily_wage, work_days, grade);
        }

        @Override
        public void wages() {
            super.wages();
        }
    }
}

 

输出

经理:tom工资为:3400.0
员工:change工资为:2250.0

进程已结束,退出代码0

 

- THE END -
最后修改:2022年4月15日
1

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