Oct 1, 2008 · As of java 8, Collectors.toList() will return an ArrayList. However this may differ in future versions on java.If you want a specific type of collection then use …

Aug 12, 2010 · ArrayList uses an Array of Object to store the data internally. When you initialize an ArrayList, an array of size 10 (default capacity) is created and an element added to the …

References API: Java Collections Framework tutorial class ArrayList<E> implements List<E> interface List<E> E get(int index) Returns the element at the specified position in this list. Don't …

Jun 17, 2009 · ArrayList<String> list = new ArrayList<String>() {{ add("A"); add("B"); add("C"); }}; However, I'm not too fond of that method because what you end up with is a subclass of …

The instruction for new ArrayList(inner) creates a new ArrayList with the contents of inner inside of it - but doesn't use the same instance as inner. Thus, you'll retain the content, but not retain …

I am wanting to create an array of arraylist like below: ArrayList<Individual> [] group = new ArrayList<Individual> () [4]; But it's not compiling. How can I do this?

Jun 6, 2010 · What are the differences between the two data structures ArrayList and Vector, and where should you use each of them?

Oct 23, 2013 · @InsaneCoder Yes, it returns an ArrayList (of Integers). Whether or not you need a temporary ArrayList or not depends on what you want to do with it. You can call ee.getValue …

Oct 28, 2010 · How might I convert an ArrayList<String> object to a String [] array in Java?

May 7, 2012 · System.out.println("Arraylist contains: " + arl.toString()); If you want to access the i element, where i is an index from 0 to the length of the array-1, you can do a :