Is it possible to combine the creation of a List of String[] with the initialization of the first entry in the List?
final List<String[]> rolesCsv = new ArrayList<String[]>();
rolesCsv.add(new String[] {"Role Name","Description"});
In other words, can I combine the above two lines into a single one that both creates and initializes the List?
The List<String[]> does need to be mutable for later adding to the List, yes.
IMPORTANT NOTE for EDITORS: Creating and initializing this definition is far different than solutions for simply creating and initializing List<String>- BEFORE you automatically link this question to the common answers for the latter, please stop! The problem is different and requires a different solution.
The correct answer was given in the comments (above) by @user16320675 , and this works well. It handles both the creation of the outer List and the internal array of strings. Other answers pointing to a simple Array asList are for simple strings, which is not the question that was asked.
to create a mutable list
final List<String[]> rolesCsv =
new ArrayList<String[]>Collections.singletonList(new String[]{"Role Name","Description"}));
Otherwise (despite the array, its element, will not be immutable)
final List<String[]> rolesCsv =
Collections.singletonList(new String[]{"Role Name","Description"})