The removeLast() method is used to retrieve and remove the last element of a given deque. This method differs from pollLast only in that it throws an exception if this deque is empty.
Package: java.util
Java Platform: Java SE 8
Syntax:
removeLast()
Return Value:
the tail of this deque
Return Value Type: E - the type of elements held in this collection
Throws:
NoSuchElementException - if this deque is empty
Pictorial Presentation
Example: Java ArrayDeque Class: removeLast() Method
import java.util.ArrayDeque;
import java.util.Deque;
public class Main {
public static void main(String[] args) {
// Create an array deque
Deque<Integer> deque = new ArrayDeque<Integer>(8);
// Use add() method to add elements in the deque
deque.add(100);
deque.add(200);
deque.add(150);
deque.add(95);
deque.add(200);
// Print all the elements of the original deque
System.out.println("Elements of the original deque:");
for (Integer number : deque) {
System.out.println("Number = " + number);
}
// removeLast() removes element at last position
int rv = deque.removeLast();
System.out.println("Element removed is: " + rv);
// Print all the elements available in deque after pushing two elements using removeFirst()
System.out.println("New deque:");
for (Integer number : deque) {
System.out.println("Number = " + number);
}
}
}
Output:
Elements of the original deque: Number = 100 Number = 200 Number = 150 Number = 95 Number = 200 Element removed is: 200 New deque: Number = 100 Number = 200 Number = 150 Number = 95
Java Code Editor:
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