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Advantages and Disadvantages of ArrayList in JAVA

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Describe a problem in ArrayList in Java?
ArrayList in Java is used to store dynamically sized collection of elements. Contrary to Arrays that are fixed in size, an ArrayList grows its size automatically when new elements are added to it.
ArrayList is part of Java’s collection framework and implements Java’s List interface.
Following are few key points to note about ArrayList in Java -
An ArrayList is a re-sizable array, also called a dynamic array. It grows its size to accommodate new elements and shrinks the size when the elements are removed.ArrayList internally uses an array to store the elements. Just like arrays, It allows you to retrieve the elements by their index.Java ArrayList allows duplicate and null values.Java ArrayList is an ordered collection. It maintains the insertion order of the elements.You cannot create an ArrayList of primitive types like int, char etc. You need to use boxed types like Integer, Character, Boolean etc.Java ArrayList is not synchronized. If multiple threads try to modify an ArrayList at the same time, then the final outcome will be non-deterministic. You must explicitly synchronize access to an ArrayList if multiple threads are gonna modify it.
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ArrayList (Java)
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ArrayList (Java)
Dynamic size array is sometimes better to use than the array. Java’s Arraylist can provide this kind of feature. This property helps us form a resizable array as it is hard to change the size of an array once it is declared in Java (Interviewbit, 2013, para.1). Thus, unlike the array, when an element is added or removed, the capacity will be adjusted automatically in Arraylist. However, when space is consumed, the primary fixed-size array will be needed to increase its size once an additional element is added. This resizing is expensive because before we can finally append our item, allocating a bigger array and copying all of the elements overgrow from the array is needed (geeksforgeeks, 2021, para. 3).
ArrayList may be beneficial for most programmers in terms of advanced ...
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