Example used by "Go" [Java] HashMap

Original URL: http://kings11347.blog.163.com/blog/static/56047032201212895416436/

Import Java.util.HashMap;

Import Java.util.Iterator;

Import Java.util.Set;

Import Java.util.Map.Entry;

public class Hashmapuse {

public static void Main (string[] args) {

hashmap<string, string> HashMap = new hashmap<string, string> ();

Hashmap.put ("cn", "China");

Hashmap.put ("Us", "Mi Guo");

Hashmap.put ("en", "United Kingdom");

System.out.println (HASHMAP);

SYSTEM.OUT.PRINTLN ("cn" +hashmap.get ("cn"));

System.out.println (Hashmap.containskey ("cn"));

System.out.println (Hashmap.keyset ());

System.out.println (Hashmap.isempty ());

Hashmap.remove ("cn");

System.out.println (Hashmap.containskey ("cn"));

Traversing HashMap with iterator

Iterator it = Hashmap.keyset (). Iterator ();

while (It.hasnext ()) {

String key = (string) it.next ();

System.out.println ("key:" +key);

System.out.println ("Value:" +hashmap.get (key));

}

Traversing HashMap with entry

set<entry<string, string>> sets = Hashmap.entryset ();

for (entry<string,string> entry:sets) {

System.out.println (Entry.getkey () + ",");

System.out.println (Entry.getvalue ());

}

}

}

"Go" [Java] hashmap examples of use