Listing 1: The displayCollection method: 
import java.util.List;
import java.util.LinkedList;
import java.util.Collection;
import java.util.Iterator;

class displayCollectionWithoutGenerics { 

    static void displayCollection(Collection collection) {
      Iterator iterator = collection.iterator();
      for (int i = 0; i < collection.size(); i++)
          { System.out.println(iterator.next()); }
    }
   
    public static void main(String[] args) {
    
    List<Float> floatList = new LinkedList<Float>();
    floatList.add(new Float(4.5));    
    
    List<String> stringList = new LinkedList<String>();
    stringList.add(new String("string"));    
    
    displayCollection(floatList);   
    displayCollection(stringList);   
    }
}

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