定義抽象類Employee，其中包含抽象方法earning();
定義Employee的三個子類YearWorker，MonthWorker和WeekWorker，在子類中重寫earning方法，輸出每種型別的工人的工資。
定義Company類，在其中main方法里，定義長度為3的Employee型別的陣列，三個元素分別為YearWorker，MonthWorker和WeekWorker的物件，然后呼叫earning方法，輸出每個人工資。
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/**
* @author: heiye
* @date: 2020-03-26 09:33
**/
public class Company {
public static void main(String[] args) {
Employee[] employees = {new YearWorker(120000),new MonthWorker(10000),new WeekWorker(2500)};
for (Employee employee : employees) {
employee.earning();
}
}
}
abstract class Employee{
public double salary;
abstract void earning();
}
class YearWorker extends Employee{
public YearWorker(double salaryParam){
this.salary = salaryParam;
}
@Override
void earning() {
System.out.println("YearWorker : "+ this.salary);
}
}
class MonthWorker extends Employee{
public MonthWorker(double salaryParam){
this.salary = salaryParam;
}
@Override
void earning() {
System.out.println("MonthWorker : "+ this.salary);
}
}
class WeekWorker extends Employee{
public WeekWorker(double salaryParam){
this.salary = salaryParam;
}
@Override
void earning() {
System.out.println("WeekWorker : "+ this.salary);
}
}
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標籤：Java相關
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