Insert Element in Array Problem

[helostcontrol]

Hey guys,

the insertion of the element and the shifting of the others position worked quite well.
This is my code:

public boolean insert(int position, Object element) {		
		 for (int i = nextInsertPosition; i > position; i--) {
		       array[i] = array[i-1]; 	   }
		   array[position] = element;  
		   nextInsertPosition++;  		
		   
		   
		   if (position >= nextInsertPosition ) {
		return false;}	
		   return true;
	}

When i enter "7" as my position parameter i get "false" which is right and the object isnt inserted into the list

 System.out.println("Hinzufügen des Elementes war möglich: " + fahrzeuge.insert(7, schiff2));

The Problem is that is get a NullPointerExeption as well.
I tried many different options but i cant figure out why.
Maybe some has an idea? :)

[Junky]

the object isnt inserted into the list

That statement is incorrect. You never do any checking other than returning true or false. The code before that (for loop etc) always inserts the object. Try printing out the array to test.

The Problem is that is get a NullPointerExeption as well.

If you get any errors then you should post the full error message and indicate on which line it occurs. We don't read minds.