这个怎么运行不成？请哪位大侠帮一下，谢谢！
public class Employee{
private int id;
private String name;
private String department;
private double salary;
public String getDepartment(){
return department;
}
public void setDepartment(String department){
this.department=department;
}
public int getId(){
return id;
}
public void setId(int id){
this.id=id;
}
public String getName(){
return name;
}
public void setName(){
this.name=name;
}
public double getSalary(){
return salary;
}
public void setSalary(double salary){
this.salary=salary;
}
}

[解决办法]
java应用程序要运行必须要有public static void main(String[])类型的主函数入口，你这个程序没有，所以无法运行
给你贴个能跑的

Java code

public class Employee{    private int id;    private String name;    private String department;    private double salary;    public String getDepartment(){        return department;    }    @Override    public String toString() {        return "Employee{" +                "id=" + id +                ", name='" + name + '\'' +                ", department='" + department + '\'' +                ", salary=" + salary +                '}';    }    public void setDepartment(String department){        this.department=department;    }    public int getId(){        return id;    }    public void setId(int id){        this.id=id;    }    public String getName(){        return name;    }    public void setName(String name){        this.name=name;    }    public double getSalary(){        return salary;    }    public void setSalary(double salary){        this.salary=salary;    }    public static void main(String[] args){          Employee e=new Employee();          e.setId(1);          e.setName("demo1");          e.setSalary(1000.0);          System.out.println(e);    }}