Question

For example I have A.java. in A.java I have:

public class A {
  // normal 
}

class B {  // cannot declare: public class B

}

And in same package with A.java. I create C.java and declare:

public class C {
  public void methodC() {  
      A a = new A(); 
      B b = new B(); // no error -> B is a public class
  }
}

If I create new class B in file C.java. C will refer class B in file C.java, not A.java.

class B {
}
public class C {
  public void methodC() {
      B b = new B(); //this B refer to C.java rather than A.java
  }
}

So, I have seen some problem here: in same package, there will be two same class. So, when I create D.java, how can I know which class B will be refered to ?

And another question, what real type of class B, when I declare it outside of class A and class C. This point makes me feel frustrated so much.

Thanks 🙂

Answer 1

When You had already done this in A.java:

public class A {
  // normal 
}

class B {  // cannot declare: public class B

}

You won’t be able to define class B in same C.java in same package as it already exists in same package

class B {            //You won't be able to do this as same class in package exists

}
public class C {
  public void methodC() {
      B b = new B(); //this B refer to C.java rather than A.java
  }
}

What I have tried is below and it showed me this: