Java Deque getLast() Method with Examples

by Online Tutorials Library July 22, 2022

Java Deque getLast() Method

The getLast() method of Java Deque Interface retrieves but not remove the last element of the deque. The above method differs from the peekLast only in one way that it throws an exception only if the deque is empty.

Syntax:

Parameter:

N.A.

Return:

The above method is used to return the tail of the deque.

Throw:

NoSuchElementException– If the given deque is empty.

Example 1

  import java.util.ArrayDeque;  import java.util.Deque;  public class JavaDequegetLastExample1 {      public static void main(String[] args) {           Deque<String> deque = new ArrayDeque<>();      deque.add(“FAT”);      deque.add(“CAO”);      deque.add(“JAVA”);      deque.add(“DBMS”);      System.out.println(“The final queue is : “+deque);      String val = deque.getLast();         System.out.println(“The required answer : “+val);            }  }  

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Output:

The final queue is : [FAT, CAO, JAVA, DBMS]  The required answer : DBMS

Example 2

  import java.util.ArrayDeque;  import java.util.Deque;  public class JavaDequegetLastExample2 {     public static void main(String[] args) {  Deque<Character> deque = new ArrayDeque<>();  System.out.println(“The list of the elements is given as : “);  deque.add(‘k’);  deque.add(‘p’);  deque.add(‘m’);  deque.add(‘t’);  System.out.println(deque);  Character val = deque.getLast();     System.out.println(“The required answer : “+val);      }  }  

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Output:

The list of the elements is given as :   [k, p, m, t]  The required answer : t

Example 3

  import java.util.ArrayDeque;  import java.util.Deque;  public class JavaDequegetLastExample3 {     public static void main(String[] args) {     Deque<Integer> deque = new ArrayDeque<>();     System.out.print(“The list of the elements is given as : “);     deque.add(2);     deque.add(3);     deque.add(4);     deque.add(5);     System.out.println(deque);     Integer val = deque.getLast();        System.out.println(“The required answer : “+val);         }     }  

Test it Now

Output:

The list of the elements is given as : [2, 3, 4, 5]  The required answer : 5

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Java Deque getLast() Method with Examples

Java Deque getLast() Method

Syntax:

Parameter:

Return:

Throw:

Example 1

Example 2

Example 3

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