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  1. arraylist - How to use an array list in Java? - Stack Overflow

    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 use raw types …

  2. java - How does ArrayList work? - Stack Overflow

    Aug 12, 2010 · 11 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 ArrayList is …

  3. java - what is the difference between a list and an arraylist

    Sep 4, 2012 · List is an interface implemented by ArrayList class. Another well-known implementation of the List is LinkedList. ArrayList provides constant-time random access, while LinkedList provides …

  4. Adding to an ArrayList Java - Stack Overflow

    Oct 28, 2011 · 44 I am a beginner to java, and need some help. I am trying to convert an Abstract Data type Foo which is an associated list to an Arraylist of the strings B. How do you loop through the list …

  5. java - Create ArrayList from array - Stack Overflow

    Oct 1, 2008 · List<Element> list = Arrays.asList(array); This will work fine. But some caveats: The list returned from asList has fixed size. So, if you want to be able to add or remove elements from the …

  6. What is the difference between List and Array in Java?

    May 7, 2012 · 72 In general (and in Java) an array is a data structure consisting of sequential memory storing a collection of objects. List is an interface in Java, which means that it may have multiple …

  7. Converting array to list in Java - Stack Overflow

    How do I convert an array to a list in Java? I used the Arrays.asList() but the behavior (and signature) somehow changed from Java SE 1.4.2 (docs now in archive) to 8 and most snippets I found on t...

  8. Add multiple items to an already initialized arraylist in Java

    My arraylist might be populated differently based on a user setting, so I've initialized it with ArrayList&lt;Integer&gt; arList = new ArrayList&lt;Integer&gt;(); How can I add hundreds of integers

  9. java - Convert String array to ArrayList - Stack Overflow

    I want to convert String array to ArrayList. For example String array is like:

  10. java - Convert ArrayList<String> to String [] array - Stack Overflow

    Mar 21, 2011 · According to Joshua Bloch in Effective Java, preallocating the array harms performance. Provide a zero-length array instead. stockList.toArray(new String[0])