Arrays Vs ArrayList ( Autoboxing & Unboxing)

• Arrays can contain primitive or objects, while ArrayList (Java 7 & JDK) can contain only objects.
• Arrrays have fixed size, while an Arraylist is dynamic.
• An ArrayList Provides more methods and Features, such as addAll, removeAll, iterator.
• For a list of primitive data types, the collections use autoboxing to reduce the codding effort. This approach makes it slower when working on fixed size Primitive data types.
• Java Autoboxing and Unboxing with examples
• Or you can check this blog – About 8 difference between Arrays and Arraylist ( Array Vs ArrayList)