Returns the number of key-value mappings in this Map.
Syntax
int size()
Parameters
None.
Return Value
The size of the map.
Example
Following is an example of the usage of this method −
class Example {
static void main(String[] args) {
def mp = ["TopicName" : "Maps", "TopicDescription" : "Methods in Maps"]
println(mp.size());
mp.put("TopicID","1");
println(mp.size());
}
}
When we run the above program, we will get the following result −
2 3
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