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Convert ArrayList to Array
Submitted by Andr on Sun, 09/19/2010 - 14:19
  1. /*
  2.  * Convert ArrayList to Array. Write a program to convert
  3.  * ArrayList to Array. This program shows how to convert
  4.  * ArrayList to Array.
  5.  */
  6.  
  7. import java.util.ArrayList;
  8. import java.util.Arrays;
  9. import java.util.List;
  10.  
  11. public class ConvertArrayListToArray {
  12.  
  13.  public static void main(String args[]){
  14.  
  15.   //create new ArrayList object
  16.   ArrayList listColor = new ArrayList();
  17.   listColor.add("Red");
  18.   listColor.add("Blue");
  19.   listColor.add("Green");
  20.  
  21.   /*
  22.    * To convert ArrayList to array, use
  23.    * toArray() method of ArrayList.
  24.    *
  25.    * This method return array of Objects.
  26.    */
  27.  
  28.   Object[] colors = listColor.toArray();
  29.  
  30.   System.out.println("ArrayList converted to Array");
  31.  
  32.   for(int i=0; i < colors.length; i++)
  33.    System.out.println(colors[i]);
  34.  }
  35. }
  36.  
  37. /*
  38. Output would be
  39. ArrayList converted to Array
  40. Red
  41. Blue
  42. Green
  43. */
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