The remove() method of CopyOnWriteArraySet removes the specified element if it is present in the set.
Syntax:
public boolean remove(Object o)
Parameters: The function accepts a mandatory parameter o which specifies the element to be removed from the set if present.
Return Value: The function returns true if set contains the specified element.
Below programs illustrate the above function:
Program 1:
// Java Program to illustrate the// remove() method in Java import java.util.concurrent.CopyOnWriteArraySet;import java.util.*; public class GFG { public static void main(String[] args) { // create object of CopyOnWriteArraySet CopyOnWriteArraySet<Integer> ArrSet = new CopyOnWriteArraySet<Integer>(); // Add elements ArrSet.add(32); ArrSet.add(67); ArrSet.add(98); ArrSet.add(100); // print CopyOnWriteArraySet System.out.println("CopyOnWriteArraySet: " + ArrSet); // Remove using remove() function if (ArrSet.remove(100)) System.out.println("Set after removal" + " of 100 is: " + ArrSet); else System.out.println("100 is not present"); }} |
Output:
CopyOnWriteArraySet: [32, 67, 98, 100] Set after removal of 100 is: [32, 67, 98]
Program 2:
// Java Program to illustrate the// isEmpty() method in Java import java.util.concurrent.CopyOnWriteArraySet;import java.util.*; public class GFG { public static void main(String[] args) { // create object of CopyOnWriteArraySet CopyOnWriteArraySet<String> ArrSet = new CopyOnWriteArraySet<String>(); // Add elements ArrSet.add("gopal"); ArrSet.add("geeks"); ArrSet.add("geeks"); ArrSet.add("technical"); // print CopyOnWriteArraySet System.out.println("CopyOnWriteArraySet: " + ArrSet); // Remove using remove() function if (ArrSet.remove("scripter")) System.out.println("Set after removal" + " of 'scripter' is: " + ArrSet); else System.out.println("'scripter' is not present"); }} |
Output:
CopyOnWriteArraySet: [gopal, geeks, technical] 'scripter' is not present