¿Cómo devuelvo una cadena de una lista en Java?

How do I return a string from a list in Java?

2 Answers

1. integer : It will either be an int or an Integer . Use ArrayList.
2. new List : It’s an interface. You can’t instantiate an interface.
3. ‘Test’ : Single quotes is used for Character literal, for Strings use double quotes.
4. Also, there’s no need of string. valueOf(i) .

The list() method of java. util. Collections class is used to return an array list containing the elements returned by the specified enumeration in the order they are returned by the enumeration. This method provides interoperability between legacy APIs that return enumerations and new APIs that require collections.

The List interface provides a way to store the ordered collection. It is a child interface of Collection. It is an ordered collection of objects in which duplicate values can be stored. Since List preserves the insertion order, it allows positional access and insertion of elements.

How to: Retrieve List Items. To return items from a list, use the GetItemById() method to return a single item, or the GetItems(CamlQuery) method to return multiple items. You then use the Load (T, []) method to attain list item objects that represent the items.

Another method that may help out is string.Join (), which takes a set of objects and will join them with any delimiter you want. For instance: will make a string that is comma/space separated. Assuming you mean your objects implement ToString, I believe this will do it: See http://msdn.microsoft.com/en-us/library/dd991828.aspx

To return items from a list, use the GetItemById() method to return a single item, or the GetItems(CamlQuery) method to return multiple items.

I have a list of objects. How do I grab the name of just one object from the list? As in: names (LIST) is not correct because it returns “A” and “B”. Just for context I am plotting a series of data frames that are stored in a list. As I come to each data.frame I want to include the name of the data.frame as the title.