Method throws – NullPointerException if the specified collection is null. 2. ArrayList addAll(Collection c) example. Java program to add all elements of a given collection to the arraylist using addAll() method. Always use generics to ensure you add onl

Java Collection Framework Introduction to Collection Framework Array-container to store a group of elements of the same type (primitives or objects). The array, however, does not support so-called dynamic allocation - it has a fixed length which cannot be

Java Collection framework tutorial with examples will help you understand how to use the collection classes in an easier way. A collection in Java is an object that stores a group of objects as a single unit. Java collection framework provides several int