Take 2 classes.i.e., Class A,Class B. In Class B declare constructor as Private.But I have to access Class A using the constructor in Class B. How is it possible?One interviewer told that Through getInstance() method it's possible to access Class A.e Even Class B declare as Private. How is it possible? Explain with an example.

GeekAdmin
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Oct 4th, 2006
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meetnaveen4u
Profile Answers by meetnaveen4u

Oct 10th, 2006

Hi.
Yes its true when u have method in ClassB as getInstance() which return the new ClassB(). Here it is about creating singleton object of ClassB which returns only one instance at give point.

hanu2782
Profile Answers by hanu2782

Nov 5th, 2006

Give example of that and explain it please.

Suneet Jain

Nov 20th, 2006

class A {
    public static void main(String[] as) {
        B b = B.getInstance(); // get the instance of Class B and store it in variable b
    }
}
class B {
    private B() {}
    public static B getInstance() {
        return new B();
    }