The clone() method of java.util.concurrent.ConcurrentSkipListSet is an in-built function in Java which returns a shallow copy of this ConcurrentSkipListSet instance.
Syntax:
ConcurrentSkipListSet.clone()
Parameters: The function does not accept any parameter.
Return Value: The function returns a shallow copy of ConcurrentSkipListSet.
Below programs illustrate the ConcurrentSkipListSet.clone() method:
Program 1:
// Java Program Demonstrate clone() // method of ConcurrentSkipListSet import java.util.concurrent.*;
class ConcurrentSkipListSetCloneExample1 {
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 elements of the set
System.out.println( "The set contains: " + set);
// Cloning the ConcurrentSkipListSet
ConcurrentSkipListSet<Integer> clone_set = set.clone();
// Adding elements to the clone set
clone_set.add( 16 );
// Printing elements of the clone set
System.out.println( "The clone set contains: " + clone_set);
}
} |
Output:
The set contains: [10, 11, 12, 13, 14, 15] The clone set contains: [10, 11, 12, 13, 14, 15, 16]
Program 2:
// Java Program Demonstrate clone() // method of ConcurrentSkipListSet */ import java.util.concurrent.*;
class ConcurrentSkipListSetCloneExample2 {
public static void main(String[] args)
{
// Initializing the set
ConcurrentSkipListSet<String>
set = new ConcurrentSkipListSet<String>();
// Adding elements to this set
set.add( "Gfg" );
set.add( "is" );
set.add( "fun" );
// Printing elements of the set
System.out.println( "The set contains: " + set);
// Cloning the ConcurrentSkipListSet
ConcurrentSkipListSet<String> clone_set = set.clone();
// Adding elements to the clone set
clone_set.add( "site" );
// Printing elements of the clone set
System.out.println( "The clone set contains: " + clone_set);
}
} |
Output:
The set contains: [Gfg, fun, is] The clone set contains: [Gfg, fun, is, site]
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentSkipListSet.html#clone()