Java HashMap.size()
Syntax
HashMap.size() has the following syntax.
public int size()
Example
In the following code shows how to use HashMap.size() method.
/*from w ww. jav a 2 s . c o m*/
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, "java2s.com");
System.out.println("Size of the map: "+ newmap.size());
}
}
The code above generates the following result.
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