英文:
Java problem : No enclosing instance of type EmployeeTest is accessible
问题
public class EmployeeTest {
public static void main(String[] args) {
Employee[] staff = new Employee[1];
staff[0] = new Employee("Carl Cracker", 75000);
for (Employee e : staff)
System.out.println("name=" + e.getName() + ",salary=" + e.getSalary());
}
class Employee {
private String name;
private double salary;
public Employee(String n, double s) {
name = n;
salary = s;
}
public String getName() {
return name;
}
public double getSalary() {
return salary;
}
}
}
抱歉，当我运行代码时，结果是：
类型EmployeeTest的封闭实例不可访问。 必须使用类型EmployeeTest的封闭实例限定分配（例如，x.new A()，其中x是EmployeeTest的实例）。
我确信我的代码非常简单易懂，所以我对为什么会出现这个错误感到非常困惑。
您能否给我一些建议？非常感谢！
英文:
I am working with Java and trying to write a very simple test code like this to test and I thought that there was no problem but there was one problem.
public class EmployeeTest {
public static void main(String[] args){
Employee[] staff = new Employee[1];
staff[0] = new Employee("Carl Cracker", 75000);
for (Employee e : staff)
System.out.println("name=" + e.getName() + ",salary=" + e.getSalary());
}
class Employee
{
private String name;
private double salary;
public Employee(String n, double s)
{
name = n;
salary = s;
}
public String getName()
{
return name;
}
public double getSalary()
{
return salary;
}
}
}
Unfortunately, when I ran my code, the result is
No enclosing instance of type EmployeeTest is accessible. Must qualify the allocation with an enclosing instance of type EmployeeTest (e.g. x.new A() where x is an instance of EmployeeTest).
I am sure that my code is very simple and easy to understand, so I am very confusing that why I had that error?
Could you please give me some comments ? Thank you very much!
答案1
得分: 1
给class Employee添加属性static，否则它是一个非静态内部类，需要从EmployeeTest的实例化对象中实例化，而这个对象在*EmployeeTest.main*中是不存在的。
英文:
Add the attribute static to class Employee otherwise it's a non static inner class which needs to be instantiated from an instance of EmployeeTest, which does not exist in EmployeeTest.main.
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