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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.ArrayList;
  4.  
  5. /* Name of the class has to be "Main" only if the class is public. */
  6. class Ideone
  7. {
  8. 	public static void main (String[] args) throws java.lang.Exception
  9. 	{
  10. 		/* Lista Final */
  11.         ArrayList<ArrayList<String>> List = new ArrayList<ArrayList<String>>() {{
  12.  
  13. 			/* Cria uma List de frutas */
  14. 			add( new ArrayList<String>() {{
  15. 				add("Abacaxi");
  16. 				add("Banana");
  17. 				add("Cajá");
  18. 				add("Caqui");
  19. 			}} );
  20.  
  21. 			/* Cria uma List de armas */
  22. 			add( new ArrayList<String>() {{
  23. 				add("Parafal");
  24. 				add("M4");
  25. 				add("PT938");
  26. 				add("AR-15");
  27. 			}} );
  28.  
  29. 			/* Cria uma List de bandas */
  30. 			add( new ArrayList<String>() {{
  31. 				add("Evanescence");
  32. 				add("Linkin Park");
  33. 				add("Epica");
  34. 				add("Xandria");
  35. 			}} );
  36. 		}};
  37.  
  38. 		/* Percorre a primeira lista */
  39. 		for (int i = 0; i < List.size(); i++) {
  40.  
  41. 			/**
  42. 			 * Percorre as sublistas utilizando expressão Lambda (Java 8)
  43. 			 * Caso não utilize Java 8, substitua por um `for`
  44. 			 */
  45. 			List.get(i).forEach( x -> {
  46. 				System.out.println( x );
  47. 			});
  48. 		}
  49. 	}
  50. }
Success #stdin #stdout 0.2s 33380KB
comments (?)
stdin 
Standard input is empty
stdout 
Abacaxi
Banana
Cajá
Caqui
Parafal
M4
PT938
AR-15
Evanescence
Linkin Park
Epica
Xandria
https://ideone.com/HSLcbp
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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