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POArrayOutOfBoundsException thrown when using Hash iterator
 

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  1. POArrayOutOfBoundsException thrown when using Hash iterator
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    <p>I wrote my own Hash class, which I then used to store (String, LinkedList(String)) pairs as the (K,V) pairs. When i call the program to fill the hash, an ArrayOutOfBoundsException is thrown in the iterator. I have tried making the array much larger than needed, but still encounter the same error. The line where the error is thrown is "nodes[j++] = n;" </p> <pre><code>abstract class IteratorHelper&lt;E&gt; implements Iterator&lt;E&gt; { public DictionaryNode&lt;K,V&gt;[] nodes; protected int index; protected long modCheck; public IteratorHelper() { nodes = new DictionaryNode[currentSize]; index = 0; int j = 0; modCheck = modCounter; System.out.println("int currentSize = " + currentSize); System.out.println("int tableSize = " + tableSize); for(int i=0; i&lt;tableSize; i++) for(DictionaryNode n : list[i]) { System.out.println("int j = " + j); System.out.println("DictionaryNode key at nodes[" + j + "] = " + n.key); nodes[j++] = n; } nodes = (DictionaryNode&lt;K,V&gt;[]) Sorter.quickSort(nodes); } public boolean hasNext() { if(modCheck != modCounter) throw new ConcurrentModificationException(); return index &lt; currentSize; } public abstract E next(); public void remove() { throw new UnsupportedOperationException(); } } class KeyIteratorHelper&lt;K&gt; extends IteratorHelper&lt;K&gt; { public KeyIteratorHelper() { super(); } public K next() { return (K) nodes[index++].key; } } class ValueIteratorHelper&lt;V&gt; extends IteratorHelper&lt;V&gt; { public ValueIteratorHelper() { super(); } public V next() { return (V) nodes[index++].value; } } </code></pre> <p>}</p>
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    1. USleppie
    1. UStrawww
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    1. COWhy not 1) initialize `nodes` to be the correct size, or 2) make it out of a resizeable collection, such as `ArrayList`?
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      1. USPatashu
    2. COwhere are you creating the array "nodes" (not just declaration.)?
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      1. POArrayOutOfBoundsException thrown when using Hash iterator
      1. USvishal_aim
    3. COWhat is `currentSize`?
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      1. POArrayOutOfBoundsException thrown when using Hash iterator
      1. USBobTheBuilder
 

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