getting error at line 46 error:Exception in thread "main" java.lang.NullPointerException at com.company.lelemon.main(lelemon.java:46) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAc…

gistfile1.txt

package com.company;

import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * User: g
 * Date: 8/5/13
 * Time: 7:18 AM
 * To change this template use File | Settings | File Templates.
 */
public class lelemon {
     public static void main(String[] args){

                               //input
         /* sample input
         2
         3 3
         0 2 1
         3 1 2 3
         1 7
         2 4 7
         4 7
         0 1 3 0 0 1 0 0
         1 7
         3 9 4 5
         7 1 2 3 4 5 6 7
         1 1
          */
         int testcases;int n,m;
         Scanner scan=new Scanner(System.in);
         testcases=scan.nextInt();
         for(int i=0;i<testcases;i++){
            n= scan.nextInt();
             m=scan.nextInt();
             int[] sequence=new int[m];
             for(int j=0;j<m;j++){
                 sequence[j]=scan.nextInt();
                                        }
             
               int[][]  lemonade=new int[n][];
             
             for(int k=0;k<=n;k++){
                        int nolemonade=scan.nextInt();
                 for(int l=0;l<nolemonade;l++){
                lemonade[k][l] =scan.nextInt();
                 }

             }







         }


    System.out.println("lelemon_gone");     }
}