Create Hashtable from HashMap in Java
Description
The following code shows how to create Hashtable from HashMap.
Example
//from w w w . j a v a 2 s . co m
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;
public class Main {
public static void main(String[] args) {
HashMap<String, String> hMap = new HashMap<String, String>();
hMap.put("1", "One");
hMap.put("2", "Two");
hMap.put("3", "Three");
Hashtable<String, String> ht = new Hashtable<String, String>();
ht.put("1", "REPLACED !!");
ht.put("4", "Four");
Enumeration e = ht.elements();
while (e.hasMoreElements()){
System.out.println(e.nextElement());
}
ht.putAll(hMap);
e = ht.elements();
while (e.hasMoreElements()){
System.out.println(e.nextElement());
}
}
}
The code above generates the following result.