ArrayList/Iterator Example
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Here is the ArrayList/Iterator example, translated to using generics:

package examples;

import java.util.ArrayList;
import java.util.Iterator;

public class ArrayListExample
{
  public static void main(String[] args)
  {
    ArrayList<String> list = new ArrayList<String>();
    list.add("Mary");
    list.add("Frank");
    list.add("Joe");
    list.add("Sylvia");
    list.add("Vanessa");

    for (int i = 0; i < list.size(); i++)
    {
      String name = list.get(i); // Note NO required cast
      System.out.println(i + ": " + name);
    }

    for (Iterator<String> iter = list.iterator(); iter.hasNext(); )
    {
      String name = iter.next(); // Note NO required cast
      System.out.println(name);
    }
  }
}

which produces the output (same as original):

0: Mary
1: Frank
2: Joe
3: Sylvia
4: Vanessa
Mary
Frank
Joe
Sylvia
Vanessa

 

This page was last modified on 27 November, 2007