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How to set view of Keys from Java Hashtable
Problem Description
How to set view of Keys from Java Hashtable?
Solution
Following example uses keys() method to get Enumeration of Keys of the Hashtable.
import java.util.Enumeration; import java.util.Hashtable; public class Main { public static void main(String[] args) { Hashtable ht = new Hashtable(); ht.put("1", "One"); ht.put("2", "Two"); ht.put("3", "Three"); Enumeration e = ht.keys(); while (e.hasMoreElements()) { System.out.println(e.nextElement()); } } }
Result
The above code sample will produce the following result.
3 2 1
java_collections.htm
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