How do you create a Two-Dimensional ArrayList?

Asked May 01 '15 at 01:29

Active May 01 '15 at 01:29

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When I tried to declare this Two-D Array List,

    ArrayList<String>[][] names = new ArrayList<String>[][];

It gave me this Error:

Exception in thread "main" java.lang.Error: Unresolved compilation problems: Variable must provide either dimension expressions or an array initializer Cannot create a generic array of ArrayList

at Prac5twodArraylistString.main(Prac5twodArraylistString.java:7)

Can you please help me understand the problem with this code?

asked May 01 '15 at 01:29

Amey Gupta

read the errormessage and try to understand it. shouldn't be too hard – May 01 '15 at 01:31
and OP's code is attempting to create not a 2D ArrayList, but a 2D array of ArrayList objects. – wrschneider May 01 '15 at 01:32
Look here. http://stackoverflow.com/questions/4401850/how-to-create-a-multidimensional-arraylist-in-java – rafaelbattesti May 01 '15 at 01:33
Couldn't you use ArrayList>? – MadProgrammer May 01 '15 at 02:03

How do you create a Two-Dimensional ArrayList?

0 Answers0