The java.util.concurrent.ConcurrentSkipListSet.size() method is an in-built function in Java which gives the total count of the elements present in the set.
Syntax:
ConcurrentSkipListSet.size()
Parameters: The function does not accept any parameter.
Return Value: The function returns the number of elements in the queue.
Below programs illustrate the ConcurrentSkipListSet.size() method:
Program 1:
// Java Program Demonstrate size() // method of ConcurrentSkipListSet import java.util.concurrent.ConcurrentSkipListSet;
class ConcurrentSkipListSetSizeExample1 {
public static void main(String[] args)
{
// Initializing the set
ConcurrentSkipListSet<Integer> set =
new ConcurrentSkipListSet<Integer>();
// Adding elements to this set
for ( int i = 1 ; i <= 10 ; i++)
set.add(i);
// Printing the size of the set
System.out.println( "Number of elements in the set = "
+ set.size());
// Printing the elements
System.out.println( "set : " + set);
}
} |
Output:
Number of elements in the set = 10 set : [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Program 2:
// Java Program Demonstrate size() // method of ConcurrentSkipListSet import java.util.concurrent.ConcurrentSkipListSet;
class ConcurrentSkipListSetSizeExample2 {
public static void main(String[] args)
{
// Initializing the set
ConcurrentSkipListSet<String> set =
new ConcurrentSkipListSet<String>();
// Adding elements to this set
set.add( "A" );
set.add( "B" );
set.add( "C" );
set.add( "D" );
set.add( "E" );
// Printing the size of the set
System.out.println( "Number of elements in the set = "
+ set.size());
// Printing the elements
System.out.println( "set : " + set);
}
} |
Output:
Number of elements in the set = 5 set : [A, B, C, D, E]
Reference:https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentSkipListSet.html#size–