The removeAll() method of java.util.concurrent.LinkedTransferQueue is an in-built function is Java which is used to remove from this queue all of its elements that are contained in the specified collection.
Syntax:
public boolean removeAll(Collection c)
Parameters: This method takes collection c as a parameter containing elements to be removed from this list.
Returns: This method returns true if this list changed as a result of the call.
Exceptions: NULL Pointer Exception if this list contains a null element.
Below program illustrates the removeAll() function of LinkedTransferQueue class :
Program 1:
// Java code to illustrate // removeAll() method of LinkedTransferQueue import java.util.concurrent.LinkedTransferQueue;
import java.util.*;
public class GFG {
public static void main(String[] args)
throws InterruptedException
{
// create object of LinkedTransferQueue
LinkedTransferQueue<String> LTQ
= new LinkedTransferQueue<String>();
// Add numbers to end of LinkedTransferQueue
// using add() method
LTQ.add( "GeeksforGeeks" );
LTQ.add( "Geeks" );
LTQ.add( "Computer Science" );
LTQ.add( "Portal" );
LTQ.add( "Gfg" );
// Print the Queue
System.out.println( "Linked Transfer Queue : "
+ LTQ);
// Get the ArrayList to be deleted
ArrayList<String> arraylist
= new ArrayList<String>();
arraylist.add( "GeeksforGeeks" );
arraylist.add( "Gfg" );
arraylist.add( "hack" );
// Print ArrayList
System.out.println( "ArrayList to be deleted : "
+ arraylist);
// Removing elements from the queue
// which are common to arraylist
// using removeAll() method.
LTQ.removeAll(arraylist);
// Prints the Queue
System.out.println( "Linked Transfer Queue "
+ "after removal of ArrayList : "
+ LTQ);
}
} |
Linked Transfer Queue : [GeeksforGeeks, Geeks, Computer Science, Portal, Gfg]
ArrayList to be deleted : [GeeksforGeeks, Gfg, hack]
Linked Transfer Queue after removal of ArrayList : [Geeks, Computer Science, Portal]
Program 2:
// Java code to illustrate // removeAll() method of LinkedTransferQueue import java.util.concurrent.LinkedTransferQueue;
import java.util.*;
public class GFG {
public static void main(String[] args)
throws InterruptedException
{
// create object of LinkedTransferQueue
LinkedTransferQueue<Integer> LTQ
= new LinkedTransferQueue<Integer>();
// Add numbers to end of LinkedTransferQueue
// using add() method
LTQ.add( 3 );
LTQ.add( 6 );
LTQ.add( 10 );
LTQ.add( 125 );
LTQ.add( 205 );
// print the Queue
System.out.println( "Linked Transfer Queue : "
+ LTQ);
// Get the ArrayList to be deleted
ArrayList<Integer> arraylist
= new ArrayList<Integer>();
arraylist.add( 10 );
arraylist.add( 100 );
arraylist.add( 125 );
// Print ArrayList
System.out.println( "ArrayList to be deleted : "
+ arraylist);
// Removing elements from the queue
// which are common to arraylist
// using removeAll() method.
LTQ.removeAll(arraylist);
// Prints the Queue
System.out.println( "Linked Transfer Queue "
+ "after removal of ArrayList : "
+ LTQ);
}
} |
Linked Transfer Queue : [3, 6, 10, 125, 205]
ArrayList to be deleted : [10, 100, 125]
Linked Transfer Queue after removal of ArrayList : [3, 6, 205]