ConcurrentSkipListMap size() method in Java with Examples
The size() method of java.util.concurrent.ConcurrentSkipListMap is an in-built function in Java which that is it returns the number of keys mapped to this map. The size() method is not a constant time operation. In case the map contains more than Integer.MAX_VALUE elements, the maximum value of the map is returned.
Syntax:
public int size()
Parameter: The function does not accepts any parameters.
Return Value: The function returns the number of elements in this map.
Below programs illustrate the above method:
Program 1:
import java.util.concurrent.*;
class GFG {
public static void main(String[] args)
{
ConcurrentSkipListMap<Integer, Integer>
mpp = new ConcurrentSkipListMap<Integer,
Integer>();
for ( int i = 1 ; i <= 5 ; i++)
mpp.put(i, i);
System.out.println(mpp.size());
}
}
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Program 2:
import java.util.concurrent.*;
class GFG {
public static void main(String[] args)
{
ConcurrentSkipListMap<Integer, Integer>
mpp = new ConcurrentSkipListMap<Integer,
Integer>();
for ( int i = 1 ; i <= 15 ; i++)
mpp.put(i, i);
System.out.println(mpp.size());
}
}
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Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentSkipListMap.html#size–
Last Updated :
14 Feb, 2019
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