IdentityHashMap size Example
IdentityHashMap class size example. This example shows you how to use size method.
IdentityHashMap class size example.public int size() Returns the number of key-value mappings in this identity hash map.
Here is the code
/**
* @ # Size.java
* A class repersenting use to size method
* of IdentityHashMap class in java.util package
* version 26 May 2008
* author Rose India
*/
import java.util.*;
public class Size {
public static void main(String args[]) {
IdentityHashMap map = new IdentityHashMap();
//Add the mapping into the map
map.put(1, "A");
map.put(2, "A");
map.put(3, "B");
System.out.println("map = " + map + "\n" +
"Size of the map = " + map.size());
}
} |
Output
map = {3=B, 2=A, 1=A}
Size of the map = 3 |
|
