ArrayDeque remove() Method in Java
- 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.*;publicclassArrayDequeDemo {publicstaticvoidmain(String args[]){// Creating an empty ArrayDequeDeque<String> de_que =newArrayDeque<String>();// Use add() method to add elements into the Dequede_que.add("Welcome");de_que.add("To");de_que.add("Geeks");de_que.add("For");de_que.add("Geeks");// Displaying the ArrayDequeSystem.out.println("Initial ArrayDeque: "+ de_que);// Removing elements using remove() methodde_que.remove();de_que.remove();// Displaying the ArrayDeque after removalSystem.out.println("ArrayDeque after removing "+"elements: "+ de_que);}}Output:Initial ArrayDeque: [Welcome, To, Geeks, For, Geeks] ArrayDeque after removing elements: [Geeks, For, Geeks]
Program 2:
// Java code to illustrate remove()importjava.util.*;publicclassArrayDequeDemo {publicstaticvoidmain(String args[]){// Creating an empty ArrayDequeDeque<Integer> de_que =newArrayDeque<Integer>();// Use add() method to add elements into the Dequede_que.add(10);de_que.add(15);de_que.add(30);de_que.add(20);de_que.add(5);// Displaying the ArrayDequeSystem.out.println("Initial ArrayDeque: "+ de_que);// Removing elements using remove() methodde_que.remove();de_que.remove();// Displaying the ArrayDeque after removalSystem.out.println("ArrayDeque after removing "+"elements: "+ de_que);}}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.*;publicclassArrayDequeDemo {publicstaticvoidmain(String args[]){// Creating an empty ArrayDequeDeque<String> de_que =newArrayDeque<String>();// Use add() method to add elements into the Dequede_que.add("Welcome");de_que.add("To");de_que.add("Geeks");de_que.add("For");de_que.add("Geeks");// Displaying the ArrayDequeSystem.out.println("Initial ArrayDeque: "+ de_que);// Removing elements using remove() methodde_que.remove("Geeks");de_que.remove("For");de_que.remove("Welcome");// Displaying the ArrayDeque after removalSystem.out.println("ArrayDeque after removing "+"elements: "+ de_que);}}Output:Initial ArrayDeque: [Welcome, To, Geeks, For, Geeks] ArrayDeque after removing elements: [To, Geeks]
Program 2:
// Java code to illustrate remove()importjava.util.*;publicclassArrayDequeDemo {publicstaticvoidmain(String args[]){// Creating an empty ArrayDequeDeque<Integer> de_que =newArrayDeque<Integer>();// Use add() method to add elements into the Dequede_que.add(10);de_que.add(15);de_que.add(30);de_que.add(20);de_que.add(5);// Displaying the ArrayDequeSystem.out.println("Initial ArrayDeque: "+ de_que);// Removing elements using remove() methodde_que.remove(30);de_que.remove(5);// Displaying the ArrayDeque after removalSystem.out.println("ArrayDeque after removing "+"elements: "+ de_que);}}Output:Initial ArrayDeque: [10, 15, 30, 20, 5] ArrayDeque after removing elements: [10, 15, 20]
