Java 通过ArrayList对象演示了Collection接口。

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import java.util.List;

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import java.util.ArrayList;

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import java.util.Collection;

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import java.util.Iterator;

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public class Main 

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{

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   public static void main(String[] args)

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   {

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      // add elements in colors array to list

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      String[] colors = {"BLACK", "RED", "WHITE", "BLUE", "CYAN"};

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      List<String> list = new ArrayList<String>();      

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      for (String color : colors)

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         list.add(color); // adds color to end of list      

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      // add elements in removeColors array to removeList

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      String[] removeColors = {"RED", "WHITE", "BLUE"};

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      List<String> removeList = new ArrayList<String>();

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      for (String color : removeColors)

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         removeList.add(color); 

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      // output list contents

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      System.out.println("ArrayList: ");

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      for (int count = 0; count < list.size(); count++)

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         System.out.printf("%s ", list.get(count));

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      // remove from list the colors contained in removeList

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      removeColors(list, removeList);

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      // output list contents

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      System.out.printf("%n%nArrayList after calling removeColors:%n");

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      for (String color : list)

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         System.out.printf("%s ", color);

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   } 

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   // remove colors specified in collection2 from collection1

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   private static void removeColors(Collection<String> collection1, 

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      Collection<String> collection2)

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   {

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      // get iterator

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