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.

Live Demo
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 returnval = deque.remove(15); 
      if (returnval == 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

java_util_arraydeque.htm

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