Java.util.ArrayDeque.remove(Object) Method

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Description

The java.util.ArrayDeque.remove(Object) method removes a single instance of the specified element from this deque.

Declaration

Following is the declaration for java.util.ArrayDeque.remove(o) method

public boolean remove(Object o)

Parameters

  • o -- The element to be removed from this deque, if present

Return Value

This method returns true if this deque contains the specified element.

Exception

  • NA

Example

The following example shows the usage of java.util.ArrayDeque.remove(o) method.

package com.tutorialspoint;

import java.util.ArrayDeque;
import java.util.Deque;

public class ArrayDequeDemo {
   public static void main(String[] args) {
      
      // create an empty array deque with an initial capacity
      Deque<Integer> deque = new ArrayDeque<Integer>(8);
      
      // use add() method to add elements in the deque
      deque.add(25);
      deque.add(30);
      deque.add(20);
      deque.add(40);        
           
      // printing all the elements available in deque
      for (Integer number : deque) {
         System.out.println("Number = " + number);
        }

      // deque contains element 30, returns true
      boolean retval = deque.remove(30); 
      if (retval == true) {
         System.out.println("element 30 is removed from the deque");
        }
      else {
         System.out.println("element 30 is not contained in the deque");
        }
		
      // deque does not contain element 15, returns false
      boolean retval = deque.remove(15); 
      if (retval == true) {
         System.out.println("element 15 is removed from the deque");
        }
      else {
         System.out.println("element 15 is not contained in the deque");  
        }
		
      // printing remaining elements
      for (Integer number : deque) {
         System.out.println("Number = " + number);
      }  
   }  
}

Let us compile and run the above program, this will produce the following result:

Number = 25
Number = 30
Number = 20
Number = 40
element 30 is removed from the deque
element 15 is not contained in the deque
Number = 25
Number = 20
Number = 40



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