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

java_util_arraydeque.htm

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