Java 怎样在主函数中创建经理和普通员工的对象，赋值姓名等信息，并调用work函数。初学者，大神帮帮忙！

public class AbstractTest {

public static void main(String[]args){

}

abstract class Employee//员工基类
{
private String name;
private String num;
private float salary;

Employee(String name,String num,float salary){
this.name=name;
this.num=num;
this.salary=salary;
}

public abstract void work();

}

class Manager extends Employee//经理类
{

private float bonus;

Manager(String name,String num,float salary,float bonus){
super(name,num,salary);
this.bonus=bonus;
}

public void work(){
System.out.println("Manager's work");
}
}

class GenStaff extends Employee//普通员工类
{

GenStaff(String name,String num,float salary){
super(name,num,salary);
}

public void work(){
System.out.println("General staff's work");
}
}

}

public static void main(String[] args) 
{
Manager mr=new Manager("张三","10001",135.1,100);
mr.work();
GenStaff gs=new GenStaff("张三","10001",135.1,100);
gs.work();

}

完整代码如下，验证可执行 class AbstractTest { public static void main(String[]args){ AbstractTest aa=new AbstractTest(); Manager mr=aa.new Manager("张三","10001",135.1f,100); mr.work(); GenStaff gs=aa.new GenStaff("张三","10001",135.1f); gs.work(); } abstract class Employee//员工基类 { private String name; private String num; private float salary; Employee(String name,String num,float salary){ this.name=name; this.num=num; this.salary=salary; } public abstract void work(); } class Manager extends Employee//经理类 { private float bonus; Manager(String name,String num,float salary,float bonus){ super(name,num,salary); this.bonus=bonus; } public void work(){ System.out.println("Manager's work"); } } class GenStaff extends Employee//普通员工类 { GenStaff(String name,String num,float salary){ super(name,num,salary); } public void work(){ System.out.println("General staff's work"); } } } 另外：建议父类的Employee的字段不要设为private，设为protected比较合适

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