Error while creating object for inner class (class within nested class)

Question

This is the code which I'm trying; I'm getting error on line "outer.inner1.inner2 innerobj2= outerobj.new inner2();".

Can anyone please confirm what is the error and syntax for object creation for nested class methods?

class outer {

  public void outerDisplay() { 
    System.out.println("Statement from outer class");
  }

  class inner {
    public void innerDisplay() {
        System.out.println("Statement from inner class");   
    }
  }

  class inner1 {
    public void inner1Display() {
        System.out.println("Statement from inner1 class");
    }

    class inner2 {
        public void inner2Display() {
            System.out.println("Statement from inner2 class");  
        }
    }
  }
}


public class InnerOuter {

  public static void main(String[] args) {
    outer outerobj=new outer();
    outerobj.outerDisplay();

    outer.inner innerobj=outerobj.new inner();
    innerobj.innerDisplay();

    outer.inner1 innerobj1=outerobj.new inner1();
    innerobj1.inner1Display();

    **outer.inner1.inner2 innerobj2= outerobj.new inner2()**;
    innerobj2.inner2Display();      
  }
}

new is always first, the qualifying name for class comes after that. so outer.inner innerobj = new outerobj.inner(); — Taavi Kivimaa
– Taavi Kivimaa, Commented Mar 19, 2019 at 20:31
Hi @TaaviKivimaa, "outerobj.new inner()" and "outerobj.new inner1()" worked fine. But not working for nested class. Please confirm. — Yuvaraj
– Yuvaraj, Commented Mar 19, 2019 at 20:34

Ivan · Accepted Answer · 2019-03-19 20:36:59Z

2

Class inner2 is an inner class for inner1 not for outer. So to create instance of inner2 you need instance of inner1 like this:

outer.inner1.inner2 innerobj2= innerobj1.new inner2();

or

outer.inner1.inner2 innerobj2= outerobj.new inner1().new inner2();

answered Mar 19, 2019 at 20:36

Ivan

8,7682 gold badges23 silver badges31 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Yuvaraj Over a year ago

thnx Ivan. Worked :)

Collectives™ on Stack Overflow

Error while creating object for inner class (class within nested class)

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related