Java 检查TreeMap是否存在特定值

/**from n o w j a v a . c o m - 时代Java**/

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import java.util.TreeMap;

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public class Main {

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  public static void main(String[] args) {

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    TreeMap treeMap = new TreeMap();

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    treeMap.put("1","One");

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    treeMap.put("2","Two");

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    treeMap.put("3","Three");

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    boolean blnExists = treeMap.containsValue("Three");

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