how to return object of inner class from outer class

Asked Dec 04 '17 at 23:55

Active Dec 05 '17 at 00:19

Viewed 21 times

in class main I get Exception in thread "main" java.lang.NullPointerException

class Outer {
    Outer() {
    }

    class Inner {
        Inner() {
        }
    }

    public Inner func() {
        Outer.Inner type = this.new Inner();  // this is correct or not ?? 
        return type;  //I want to return this object
    }
}

my problem in public Inner func(A a) or not ???

in Class main I define

    Outer O = new Outer();
    Outer.Inner t;
    t = O.func(); //**I get Exception Her**

edited Dec 05 '17 at 00:19

asked Dec 04 '17 at 23:55

Issam Otoz

Where is `object_of_A` defined? Please provide a [mcve]. – shmosel Dec 04 '17 at 23:57
All of your code looks correct except `object_of_A` isn't initialized anywhere. – 4castle Dec 04 '17 at 23:59
Did not matter I am not put all my code her – Issam Otoz Dec 05 '17 at 00:03
object_of_A defined in func2() – Issam Otoz Dec 05 '17 at 00:05
What I care about is public Inner func(A a) – Issam Otoz Dec 05 '17 at 00:07
I want to return type in public Inner func(A a) correctly – Issam Otoz Dec 05 '17 at 00:08
I facilitated my code for my interests Good now ?? – Issam Otoz Dec 05 '17 at 00:19
[This code works fine.](https://ideone.com/hjMRTQ) Again, please provide a [mcve] demonstrating your problem. – shmosel Dec 05 '17 at 00:22
My problem is Solved The problem was not in this code above – Issam Otoz Dec 05 '17 at 10:21
I thank everyone for verifying the code above – Issam Otoz Dec 05 '17 at 10:24

how to return object of inner class from outer class

0 Answers0