A.He has some pet apes in his apartment. B.He's worried the chicken he left out will spoil. C.He's worried his roommates will worry about him. D.He's worried he will miss out on his dinner.
【单选题】Analyze the following code and choose the best answer: public class Foo { private int x; public static void main(String[] args) { Foo foo = new Foo(); System.out.println(foo.x); } }
A.
Since x is an instance variable, it cannot be directly used inside a main method. However, it can be accessed through an object such as foo in this code.
B.
Since x is defined in the class Foo, it can be accessed by any method inside the class without using an object. You can write the code to access x without creating an object such as foo in this code.
C.
Since x is private, it cannot be accessed from an object foo.
D.
You cannot create a self-referenced object; that is, foo is created inside the class Foo.