convert « List « Java Collection Q&A

1. Easiest way to convert a List to a Set? - Java    stackoverflow.com

Easiest way to convert a List to a Set? - In Java

2. converting elements of a list to string    stackoverflow.com

I would like to obtain the string text of the elements stored in a list, say List<Car>. Would the toArray() and the toString() methods be the best options?

3. Most concise way to convert a Set to a List    stackoverflow.com

I am currently doing this:

Set<String> listOfTopicAuthors = ....

List<String> list = Arrays.asList( 
    listOfTopicAuthors.toArray( new String[0] ) );

4. Convert Collection to List    stackoverflow.com

I want to say how to convert a Collection to a List in Java

5. How do I convert from List to List in Java using generics?    stackoverflow.com

In Java, how do I convert List<?> to List<T> using a general purpose method so that I can replace patterns like the following with a single method call:

List untypedList = new ...

6. How to convert variadic function arguments into collection such as Set or List    stackoverflow.com

In Java, we can use variadic function in the following way:

public Set packStrings(String...strings){
    for (String str : strings){
         //Do something ...

7. How to Convert List to List

8. java: converting from List to List when SomeClass implements SomeInterface    stackoverflow.com

I'm having a brain cramp: I have a public interface SomeInterface and a static private class SomeClass and am trying to return a List<SomeInterface> from one of my methods, but I ...

9. Java: Generic List to Set conversion and vice versa    stackoverflow.com

I Need a java function which converts from java.util.List to java.util.Set and vice versa, independent of type of objects in the List/Set.

10. java generics - convert List

11. JCF: one-liner to convert Enumeration to a Set/List    stackoverflow.com

Is there some one-liner bridge method to dump a given Enumeration to java.util.List or java.util.Set? Something built-in like Arrays.asList() or Collection.toArray() should exist somewhere, but I'm unable to find that in my ...

12. Java collections convert a string to a list of characters    stackoverflow.com

I would like to convert the string containing abc to a list of characters and a hashset of characters. How can I do that in Java ?

String abc = "abc";
 ...

13. Generics - converting lists....    forums.oracle.com