Java for loop syntax(Generics)

 I have created sample program to demonstrate Java  for-each loop syntax, using both a List with pre-Java5 syntax, and a second example using Java Generics

    import java.util.ArrayList;
    import java.util.List;

    public class JavaForLoop
    {
    public static void main(String[] args) {
    withoutGenerics();
    withGenerics();
    }
    private static void withoutGenerics() {
    List integers = new ArrayList();
    integers.add(new Integer(10));
    integers.add(new Integer(20));
    integers.add(new Integer(30));
    // you get an Object back from a List
    for (Object integer : integers)
    {
    // to convert from an Object to an Integer
    System.out.println(integer.toString());
    }
    }
    /*In this example method when you get the items out of the list you get them out as Objects, which you must then cast to the correct type.*/

    private static void withGenerics() {
    List integers = new ArrayList();
    integers.add(new Integer(40));
    integers.add(new Integer(50));
    integers.add(new Integer(60));

    // you get an Object back from a List
    for (Integer integer : integers)
    {
    // here you know for sure that you're dealing with
    // an Integer reference
    System.out.println(integer);
    }
    }
    }
    /*In this method, I have specify the type of the collection when you created it. In this cast the extra casting step is not required*/