Java HashSet用于从字符串数组中删除重复的值。

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import java.util.List;

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import java.util.Arrays;

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import java.util.HashSet;/**来自 n o w  j a v a  . c o m**/

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import java.util.Set;

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import java.util.Collection;

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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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      // create and display a List<String>

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      String[] colors = {"red", "white", "blue", "green", "gray", 

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         "orange", "tan", "white", "cyan", "peach", "gray", "orange"};

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      List<String> list = Arrays.asList(colors);

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      System.out.printf("List: %s%n", list);

      /*

      来 自*

       nowjava - 时  代  Java

      */

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      // eliminate duplicates then print the unique values

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      printNonDuplicates(list);

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   }  

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   // create a Set from a Collection to eliminate duplicates

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   private static void printNonDuplicates(Collection<String> values)

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   {

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      // create a HashSet 

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      Set<String> set = new HashSet<>(values);   

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