Web Reference: Jan 11, 2018 · You really shouldn't use raw types (such as ArrayList list) in any new code. If you had declared list properly, you would get compilation errors when trying to add the wrong type of element to the list. Jul 23, 2025 · In Java, an Array is a fixed-sized, homogenous data structure that stores elements of the same type whereas, ArrayList is a dynamic-size, part of the Java Collections Framework and is used for storing objects with built-in methods for manipulation. Resizable-array implementation of the List interface. Implements all optional list operations, and permits all elements, including null. In addition to implementing the List interface, this class provides methods to manipulate the size of the array that is used internally to store the list.
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