Creating objects with multiple classes

Question

I have a program with multiple classes, and when I try to make an instance of one of these objects in main, I get an error. How do I properly create a class in main with multiple classes?

public class A {

    class B {
    }

    class C {
    }

    public static void main(String[] args) {
        B b = new B();
        C c = new C();
    }

Error: No enclosing instance of type A is accessible. Must qualify the allocation with an enclosing instance of type A

you can make the inner classes static, then they don't need an enclosing instance. — eckes
– eckes, Commented Jan 7, 2015 at 23:56
Possible duplicate of Java - No enclosing instance of type Foo is accessible — fabian
– fabian, Commented Mar 3, 2016 at 23:57

Stack Exchange Broke The Law · Accepted Answer · 2015-01-07 23:28:52Z

1

This is because B and C are inner classes. Unless you understand inner classes, this is probably not what you want.

Move them outside A:

public class A {
    public static void main(String[] args) {
        B b = new B();
        C b = new C();
    }
}
class B {
}
class C {
}

answered Jan 7, 2015 at 23:28

Stack Exchange Broke The Law

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