- The Java.util.ArrayDeque.remove() method is used to remove the element present at the head of the Deque.
Syntax:
Array_Deque.remove()
Parameters: The method does not take any parameters.
Return Value: This method returns the element present at the head of the Deque.
Exceptions: The method throws NoSuchElementException is thrown if the deque is empty.
Below programs illustrate the Java.util.ArrayDeque.remove() method:
Program 1:
// Java code to illustrate remove()importjava.util.*;ÂÂpublicclassArrayDequeDemo {   Âpublicstaticvoidmain(String args[])   Â{       Â// Creating an empty ArrayDeque       ÂDeque<String> de_que =newArrayDeque<String>();       Â// Use add() method to add elements into the Deque       Âde_que.add("Welcome");       Âde_que.add("To");       Âde_que.add("Geeks");       Âde_que.add("For");       Âde_que.add("Geeks");       Â// Displaying the ArrayDeque       ÂSystem.out.println("Initial ArrayDeque: "+ de_que);       Â// Removing elements using remove() method       Âde_que.remove();       Âde_que.remove();       Â// Displaying the ArrayDeque after removal       ÂSystem.out.println("ArrayDeque after removing "                          Â+"elements: "+ de_que);   Â}}Output:Initial ArrayDeque: [Welcome, To, Geeks, For, Geeks] ArrayDeque after removing elements: [Geeks, For, Geeks]
Program 2:
// Java code to illustrate remove()importjava.util.*;ÂÂpublicclassArrayDequeDemo {   Âpublicstaticvoidmain(String args[])   Â{       Â// Creating an empty ArrayDeque       ÂDeque<Integer> de_que =newArrayDeque<Integer>();       Â// Use add() method to add elements into the Deque       Âde_que.add(10);       Âde_que.add(15);       Âde_que.add(30);       Âde_que.add(20);       Âde_que.add(5);       Â// Displaying the ArrayDeque       ÂSystem.out.println("Initial ArrayDeque: "+ de_que);       Â// Removing elements using remove() method       Âde_que.remove();       Âde_que.remove();       Â// Displaying the ArrayDeque after removal       ÂSystem.out.println("ArrayDeque after removing "                          Â+"elements: "+ de_que);   Â}}Output:Initial ArrayDeque: [10, 15, 30, 20, 5] ArrayDeque after removing elements: [30, 20, 5]
- The Java.util.ArrayDeque.remove(Object) method is used to remove a particular element from an ArrayDeque.
Syntax:
Priority_Queue.remove(Object O)
Parameters: The parameter O is of the type of ArrayDeque and specifies the element to be removed from the ArrayDeque.
Return Value: This method returns True if the specified element is present in the Deque else it returns False.
Below programs illustrate the Java.util.ArrayDeque.remove() method:
Program 1:
// Java code to illustrate remove()importjava.util.*;ÂÂpublicclassArrayDequeDemo {   Âpublicstaticvoidmain(String args[])   Â{       Â// Creating an empty ArrayDeque       ÂDeque<String> de_que =newArrayDeque<String>();       Â// Use add() method to add elements into the Deque       Âde_que.add("Welcome");       Âde_que.add("To");       Âde_que.add("Geeks");       Âde_que.add("For");       Âde_que.add("Geeks");       Â// Displaying the ArrayDeque       ÂSystem.out.println("Initial ArrayDeque: "+ de_que);       Â// Removing elements using remove() method       Âde_que.remove("Geeks");       Âde_que.remove("For");       Âde_que.remove("Welcome");       Â// Displaying the ArrayDeque after removal       ÂSystem.out.println("ArrayDeque after removing "                          Â+"elements: "+ de_que);   Â}}Output:Initial ArrayDeque: [Welcome, To, Geeks, For, Geeks] ArrayDeque after removing elements: [To, Geeks]
Program 2:
// Java code to illustrate remove()importjava.util.*;ÂÂpublicclassArrayDequeDemo {   Âpublicstaticvoidmain(String args[])   Â{       Â// Creating an empty ArrayDeque       ÂDeque<Integer> de_que =newArrayDeque<Integer>();       Â// Use add() method to add elements into the Deque       Âde_que.add(10);       Âde_que.add(15);       Âde_que.add(30);       Âde_que.add(20);       Âde_que.add(5);       Â// Displaying the ArrayDeque       ÂSystem.out.println("Initial ArrayDeque: "+ de_que);       Â// Removing elements using remove() method       Âde_que.remove(30);       Âde_que.remove(5);       Â// Displaying the ArrayDeque after removal       ÂSystem.out.println("ArrayDeque after removing "                          Â+"elements: "+ de_que);   Â}}Output:Initial ArrayDeque: [10, 15, 30, 20, 5] ArrayDeque after removing elements: [10, 15, 20]
ArrayDeque remove() Method in Java
