foreach not applicable to expression type

Question

what does this error mean? and how do i solve it?

foreach not applicable to expression type.

im am trying to write a method find(). that find a string in a l

Answer 1

Without code this is just a grasp at straws.

If you're trying to write your own list-find method, it would be like this

<E> boolean contains(E e, List<E> list) {

    for(E v : list) if(v.equals(e)) return true;
    return false;
}

Answer 2

Make sure your for-construct looks like this

    LinkedList<String> stringList = new  LinkedList<String>();
    //populate stringList

    for(String item : stringList)
    {
        // do something with item
    }

Answer 3

Are you using an iterator instead of an array?

http://blogs.oracle.com/CoreJavaTechTips/entry/using_enhanced_for_loops_with

You cannot just pass an Iterator into the enhanced for-loop. The 2nd line of the following will generate a compilation error:

    Iterator<Penguin> it = colony.getPenguins();
    for (Penguin p : it) {

The error:

    BadColony.java:36: foreach not applicable to expression type
        for (Penguin p : it) {

I just saw that you have your own Stack class. You do realize that there is one already in the SDK, right? http://download.oracle.com/javase/6/docs/api/java/util/Stack.html You need to implement Iterable interface in order to use this form of the for loop: http://download.oracle.com/javase/6/docs/api/java/lang/Iterable.html