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
