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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		// your code goes here
  10. 		ArrayList<ArrayList<Integer>> lists = new ArrayList<ArrayList<Integer>>();
  11. 		lists.addAll(Collections.nCopies(5, new ArrayList<Integer>()));
  12. 		lists.get(0).add(1);
  13. 		System.out.printf("%d", lists.get(3).size());
  14.  
  15. 	}
  16. }
Success #stdin #stdout 0.04s 2184192KB
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https://ideone.com/qffjDT
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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