CopyOnWriteArraySet remove() method in Java
Last Updated :
26 Nov, 2018
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:
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
CopyOnWriteArraySet<Integer> ArrSet
= new CopyOnWriteArraySet<Integer>();
ArrSet.add( 32 );
ArrSet.add( 67 );
ArrSet.add( 98 );
ArrSet.add( 100 );
System.out.println( "CopyOnWriteArraySet: "
+ ArrSet);
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:
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.*;
public class GFG {
public static void main(String[] args)
{
CopyOnWriteArraySet<String> ArrSet
= new CopyOnWriteArraySet<String>();
ArrSet.add( "gopal" );
ArrSet.add( "geeks" );
ArrSet.add( "geeks" );
ArrSet.add( "technical" );
System.out.println( "CopyOnWriteArraySet: "
+ ArrSet);
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
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/CopyOnWriteArraySet.html#remove-java.lang.Object-
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