Java Collection Tutorial - Java HashMap.get(Object key)


HashMap.get(Object key) has the following syntax.

public V get(Object key)


In the following code shows how to use HashMap.get(Object key) method.

/*from  ww w . j av a  2 s  .  c  om*/

import java.util.HashMap;

public class Main {
   public static void main(String args[]) {
      HashMap<Integer, String> newmap = new HashMap<Integer, String>();      
      // populate hash map
      newmap.put(1, "tutorials");
      newmap.put(2, "from");
      newmap.put(3, "");
      // get value of key 3
      String val=(String)newmap.get(3);
      // check the value
      System.out.println("Value for key 3 is: " + val);

The code above generates the following result.