ConcurrentSkipListSet remove() method in Java
The java.util.concurrent.ConcurrentSkipListSet.remove() method is an in-built function in Java which is used to remove an element if it is present in this set.
Syntax:
ConcurrentSkipListSet.remove(Object o)
Parameters: The function accepts a single parameter o i.e. the object to be removed.
Return Value: The function returns a true boolean value on successful removal of the object, otherwise returns false.
Below programs illustrate ConcurrentSkipListSet.remove() method:
Program 1: The element to be removed is present in the set.
// Java Program Demonstrate remove()// method of ConcurrentSkipListSet import java.util.concurrent.ConcurrentSkipListSet; class ConcurrentSkipListSetRemoveExample1 { 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 <= 5; i++) set.add(i); // Printing the elements of the set System.out.println("The elements in the set are:"); for (Integer i : set) System.out.print(i + " "); // remove() method will remove the specified // element from the set set.remove(1); set.remove(5); // Printing the elements of the set System.out.println("\nRemaining elements in set : "); for (Integer i : set) System.out.print(i + " "); }} |
Output:
The elements in the set are: 1 2 3 4 5 Remaining elements in set : 2 3 4
Program 2: The element to be removed is not present in the set.
// Java Program Demonstrate remove()// method of ConcurrentSkipListSet import java.util.concurrent.ConcurrentSkipListSet; class ConcurrentSkipListSetRemoveExample2 { public static void main(String[] args) { // Initializing the set ConcurrentSkipListSet<Integer> set = new ConcurrentSkipListSet<Integer>(); // Adding elements to this set for (int i = 10; i <= 15; i++) set.add(i); // Printing the elements of the set System.out.println("The elements in the set are:"); for (Integer i : set) System.out.print(i + " "); // remove() method will remove the specified // element from the set set.remove(1); set.remove(5); // Printing the elements of the set System.out.println("\nRemaining elements in set : "); for (Integer i : set) System.out.print(i + " "); }} |
Output:
The elements in the set are: 10 11 12 13 14 15 Remaining elements in set : 10 11 12 13 14 15
