Java Collections.emptyMap()
Syntax
Collections.emptyMap() has the following syntax.
public static final <K,V> Map <K,V> emptyMap()
Example
In the following code shows how to use Collections.emptyMap() method.
//from w ww .j a v a2 s . c o m
import java.util.Collections;
import java.util.Map;
public class Main {
public static void main(String args[]) {
// create an empty map
Map emptymap = Collections.emptyMap();
System.out.println("Created empty immutable map: "+emptymap);
// try to add elements
emptymap.put("1","from java2s.com");
}
}
The code above generates the following result.
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