list « List « Java Collection Q&A

1. Java: iterating through list of lists?    stackoverflow.com

The question but in C#. So does Java have C#'s command? I need it for Matches-SearchTerm-Files-relationship.

foreach(var i in BunchOfItems.SelectMany(k => k.Items)) {}

2. can i use iterable traverse the list again and again in "foreach"?    stackoverflow.com

can i use iterable traverse the list again and again? when i use ArrayList,i can traverse the list again and again in "foreach" ,but when i use iterable as a parameter in ...

3. Treat a java.lang.Iterable as a #list expression in Freemarker    stackoverflow.com

I have a java.lang.Iterable (in fact, a com.google.gson.JsonArray instance). I would like to enumerate the items in the list using freemarker (2.3.16).

[#assign sports = controller.sports]
[#-- At this point, sports is bound to ...

4. Java list best practice    stackoverflow.com

I need some container to keep elements so, if I'll try to get the size()+i element, i'll get element number i. Or with iterator, which starts from the beginning of ...

5. new list for each iteration ?    coderanch.com

6. List iteration    coderanch.com

Below are the two methods to retrieve the list elements 1) for (int i=0, n=list.size(); i < n; i++) list.get(i); 2) for (Iterator i=list.iterator(); i.hasNext(); ) i.next(); When we can retrieve the elements of list using 1) case, then why did Java allow us to use 2) case, which is using Iterator interface? Is there any difference between these two approaches ...

7. what is T in List list    forums.oracle.com

Hi guys, I am wondering what is the T stand for in the List list? and what's it useful for the following interface and implementation to use ? public interface TestInterface { public void sayHello(); } public class TestInterfaceImpl implements TestInterface{ @Override public void sayHello() { System.out.println("Buenas noches!"); } }

8. How to create an instance of List ??    forums.oracle.com