Question

How do I do forward declarations in Java?

I have two classes, each needs to call a method in the other and they both reside within different namespaces. For example…

package one;

class A {
    public void foo() {
        B b = new B();
        b.bah();
    }
}

and

package two;

class B {
    public void bah() {
        A a = new A();
        a.foo();
    }
}

UPDATE

In Eclipse when this code is encountered a compile time error would be thrown up “A cycle was detected in the build path…”.

Answer 1

Just import them. Java is a lot cleverer than C++ about these things.