fork download
copy 
  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Outer_Demo{
  9.    int num;
  10.    //inner class
  11.    public class Inner_Demo{
  12.       public void print(){	   
  13.          System.out.println("This is an inner class");
  14.       }
  15.    }
  16.    //Accessing he inner class from the method within
  17.    void display_Inner(){
  18.       Inner_Demo inner = new Inner_Demo();
  19.       inner.print();
  20.    }
  21. }
  22.  
  23. class Ideone
  24. {
  25. 	public static void main (String[] args) throws java.lang.Exception
  26. 	{
  27. 		// your code goes here
  28. 		 //Instantiating the outer class 
  29.       //Outer_Demo outer = new Outer_Demo();
  30.       //Accessing the display_Inner() method.
  31.       //outer.display_Inner();
  32.   	  Outer_Demo outer=new Outer_Demo();
  33. 	  Outer_Demo.Inner_Demo inner=outer.new Inner_Demo();
  34.       inner.print();
  35. 	}
  36. }
Success #stdin #stdout 0.05s 320576KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
This is an inner class
https://ideone.com/DvP0Tv
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!