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ArrayIndexOutOfBoundsException - Examples, Causes & Fixes. An array-index out of bounds exception is a Java exception thrown due to the fact that the program is trying to access an. element at a position that is outside an array limit, hence the words Out of bounds. In other words, the program is trying to. access an element at an index that is outside the array bounds.
In ArrayList, an element can be removed by passing the element as argument in remove method or by passing its index position. Retrieval of element from the middle of collection is faster in ArrayList than LinkedList. In ArrayList, an element can be retrieved from its index position. While trying to fetch an element from the head of collection in a collection size of 0.1 million, LinkedList worked approximately two times faster than ArrayList.