package 项目.面向对象homework;

public class HomeWork01 {
    public static void main(String[] args) {
        Person[] p1 = new Person[5];
        p1[0] = new Person("小明",10,"建筑师");
        p1[1] = new Person("校长",24,"厨师");
        p1[2] = new Person("小红",12,"学生");
        p1[3] = new Person("小花",56,"学生");
        p1[4] = new Person("小会",33,"学生");

        System.out.println("排序前");
        for (int i = 0; i < p1.length; i++) {
            System.out.println(p1[i].toString());
        }

        Person temp = null;
        for (int i = 0; i < p1.length - 1; i++) {
            for (int j = 0; j < p1.length - 1 - i; j++) {
                if(p1[i].getAge() < p1[i+1].getAge()){
                    temp = p1[i];
                    p1[i] = p1[i+1];
                    p1[i+1] = temp;//应该交换对象，不能只交换对象的getAge
                }
            }
        }

        System.out.println("\n排序后");
        for (int i = 0; i < p1.length; i++) {
            System.out.println(p1[i].toString());
        }
    }
}

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 + '\'' +
                '}';
    }
}

package 项目.面向对象homework.HW03;

public class HomwWork03 {
    public static void main(String[] args) {
        Teacher teacher = new Teacher("小明老师",34,"普通教师",8000);
        System.out.println(teacher.introduce());

        Teacher t2 = new Professor("小张教授",56,"教授",10000,1.3);
        System.out.println(((Professor)t2).introduce());

        Teacher t3 = new NextProfesser("小红副教授",44,"副教授",9000,1.2);
        System.out.println(((NextProfesser)t3).introduce());

        Teacher t4 = new JiangShi("小讲师",40,"讲师",8500,1.1);
        System.out.println(((JiangShi)t4).introduce());

    }
}
class Teacher{
    private String name;
    private int age;
    private String post;//职称
    private double salary;

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

    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;
    }

    @Override
    public String toString() {
        return "Teacher{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", post='" + post + '\'' +
                ", salary=" + salary +
                '}';
    }

    public String introduce(){
        return this.toString();
    }
}

 

package 项目.面向对象homework.HW03;

public class Professor extends Teacher{
    private double salaryGrade;

    public Professor(String name, int age, String post, double salary, double salaryGrade) {
        super(name, age, post, salary);
        this.salaryGrade = salaryGrade;
    }

    public double getSalaryGrade() {
        return salaryGrade;
    }

    public void setSalaryGrade(double salaryGrade) {
        this.salaryGrade = salaryGrade;
    }

    @Override
    public String introduce() {
        return super.introduce() + "工资级别："+ salaryGrade;
    }
}

package 项目.面向对象homework.HW03;

public class NextProfesser extends Teacher{
    private double salaryGrade;

    public NextProfesser(String name, int age, String post, double salary, double salaryGrade) {
        super(name, age, post, salary);
        this.salaryGrade = salaryGrade;
    }

    public double getSalaryGrade() {
        return salaryGrade;
    }

    public void setSalaryGrade(double salaryGrade) {
        this.salaryGrade = salaryGrade;
    }

    @Override
    public String introduce() {
        return super.introduce() + "工资级别："+ salaryGrade;
    }
}

package 项目.面向对象homework.HW03;

public class JiangShi extends Teacher{
    private double salaryGrade;

    public JiangShi(String name, int age, String post, double salary, double salaryGrade) {
        super(name, age, post, salary);
        this.salaryGrade = salaryGrade;
    }

    public double getSalaryGrade() {
        return salaryGrade;
    }

    public void setSalaryGrade(double salaryGrade) {
        this.salaryGrade = salaryGrade;
    }

    @Override
    public String introduce() {
        return super.introduce() + "工资级别："+ salaryGrade;
    }
}