import java.util.*;

public class TestExceptions{
 
  public static void main(String[] args)
  {

    //Null pointer exception
      LinkedList<Integer> list=null;
      list.add(5);
    
    //array index out of bounds exception
      int[] array = new int[5];
      array[6]=5;
      
    //doing bad things casting up and down the inheritance hierarchy
      Object obj = new String("hello");
      Integer testInt = (Integer)(obj);
  }
}