How to access outer class element from inner class element?

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Java

OOP

i have the num variable in both of my inner and outer classes.. i just want to excess the outer class variable from the inner class variable using the inner class method..how do i do that?

how do i make objects or any change to excess that from my inner class method...??

IMP : I WANT TO EXCESS THE OUTER CLASS ELEMENT FROM THE INNER CLASS METHOD ONLY, NOT ANY OTHER WAY....

import java.util.*;
import java.lang.*;
class Outer_demo
{
	int num=23; // i want to excess this element... how to do that?
	public class Inner_demo
	{
		int num=113;
		public void print()
		{
			System.out.println("this is an inner class with num value " + num); // here num value will be 113 ....
		}
	} //inner class ends
	void display_inner()
	{
		Inner_demo e = new Inner_demo();
		e.print();
	} 

}

What I have tried:

i havent tried much .. almost some of the changes .i.e creating inner class initittive but it was not much helpful.. so please do help me..everything you need is written in the comments.. please do read it carefully..


Thanks.