ArrayList in Java

ArrayList is one of the most commonly used classes in Java's collections framework.It provides a dynamic array that can grow and shrink automatically as elements are added or removed. Unlike traditional arrays, you do not need to specify the size in advance. ArrayList is part of the java.util package and implements the list interface. Why do we need ArrayList? In Java,array have a fixed size.Once an array is created,its size cannot be changed. Limitations of Arrays Fixed size. Insertion