fork download
copy 
  1. /* package codechef; // 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.  
  9. class Node
  10. {
  11.     int val;
  12.     Node next;
  13.     Node(int n)
  14.     {
  15.         val=n;
  16.     }
  17. }
  18. class Ideone
  19. {
  20.     Node start=null;
  21. 	public static void main (String[] args) throws java.lang.Exception
  22. 	{
  23. 		// your code goes here
  24. 		Ideone c=new Ideone();
  25. 		c.create();
  26. 		c.trav();
  27. 	}
  28.  
  29. 	void create()throws IOException
  30. 	{
  31. 	    char ch='y';
  32. 	    Node temp,curr=null;
  33. 	    BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
  34.  
  35. 	    while(ch=='y')
  36. 	    {
  37. 	        System.out.println("Enter number");
  38.  
  39. 	        temp=new Node(Integer.parseInt(br.readLine()));
  40. 	        temp.next=null;
  41. 	        if(start==null)
  42. 	        {
  43. 	            start=temp;
  44. 	            curr=temp;
  45.  
  46. 	        }
  47. 	        else
  48. 	        {
  49. 	            curr.next=temp;
  50. 	            curr=temp;
  51. 	        }
  52. 	        ch=(char)br.read();
  53. 	    }
  54. 	}
  55.  
  56. 	void trav()
  57. 	{
  58. 	    Node temp=start;
  59. 	    while(temp!=null)
  60. 	    {
  61. 	        System.out.println(temp.val);
  62. 	        temp=temp.next;
  63. 	    }
  64. 	}
  65. }
  66.  
Runtime error #stdin #stdout #stderr 0.05s 711168KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Enter number
stderr
copy 
Exception in thread "main" java.lang.NumberFormatException: null
	at java.lang.Integer.parseInt(Integer.java:542)
	at java.lang.Integer.parseInt(Integer.java:615)
	at Ideone.create(Main.java:39)
	at Ideone.main(Main.java:25)
https://ideone.com/xy1ySr
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!