Java WeakHashMap(Map <? extends K ,? extends V > m) Constructor
Syntax
WeakHashMap(Map <? extends K ,? extends V > m) constructor from WeakHashMap has the following syntax.
public WeakHashMap(Map <? extends K ,? extends V> m)
Example
In the following code shows how to use WeakHashMap.WeakHashMap(Map <? extends K ,? extends V > m) constructor.
import java.util.HashMap;
import java.util.Map;
import java.util.WeakHashMap;
/*w ww.j a va 2 s . c o m*/
public class Main {
public static void main(String[] args) {
Map<String, String> hashMap = new HashMap<String, String> ();
hashMap.put("1", "first");
hashMap.put("2", "two");
hashMap.put("3", "from java2s.com");
Map<String, String> weakHashMap = new WeakHashMap<String, String> (hashMap);
}
}
Home »
Java Tutorial »
java.util »
Java Tutorial »
java.util »