Java Deque removeLastOccurrence() Method with Examples

by Online Tutorials Library July 22, 2022

Java Deque removeLastOccurrence() Method

The removeLastOccurrence() method of Deque interface is used to remove the last occurrence of the specified element from the given deque. If there is no element in the deque, then it remains unchanged. The above method returns true if the specified element is present in the deque.

Syntax:

Parameter:

The above requires only one parameter:

The element ‘o’ that needs to be removed from the given deque.

Return:

The above method is used to return true if the specified element is removed.

Throw:

ClassCastException– If the specified element is incompatible with the given deque.
NullPointerException– If the specified element is already null and the given deque does not allow the null elements.

Example 1

  import java.util.ArrayDeque;  import java.util.Deque;    public class JavaDequeremoveLastOccurrenceExample1 {     public static void main(String[] args) {     Deque<Character> deque = new ArrayDeque<>();      deque.push(‘a’);       deque.push(‘d’);      deque.push(‘c’);      deque.push(‘b’);      deque.push(‘a’);      boolean val = deque.removeLastOccurrence(‘a’);      System.out.println(“The value is already present in the deque : “+val);    System.out.println(“The final deque is given as : “);       for (Character character : deque) {  System.out.println(character);     }  }  }  

Test it Now

Output:

The value is already present in the deque : true  The final deque is given as :   a  b  c  d

Example 2

  import java.util.ArrayDeque;  import java.util.Deque;    public class JavaDequeremoveLastOccurrenceExample2 {     public static void main(String[] args) {     Deque<Long> deque = new ArrayDeque<>();      deque.add(23l);       deque.add(45l);      deque.add(63l);      deque.add(45l);    boolean val = deque.removeLastOccurrence(55l);      System.out.println(“The value is already present in the deque : “+val);    System.out.println(“The final deque is given as : “);      for (Long long1 : deque) {  System.out.println(long1);    }     }  }  

Test it Now

Output:

The value is already present in the deque : false  The final deque is given as :   23  45  63  45

Example 3

  import java.util.ArrayDeque;  import java.util.Deque;  public class JavaDequeremoveLastOccurrenceExample3 {     public static void main(String[] args) {     Deque<Float> deque = new ArrayDeque<>();      deque.add(55.8f);       deque.add(22.3f);      deque.add(89f);      deque.add(22.3f);    boolean val = deque.removeLastOccurrence(22.3f);    System.out.println(“The value is already present in the deque : “+val);    System.out.println(“The final deque is given as : “);     for (Float float1 : deque) {  System.out.println(float1);  }     }  }  

Test it Now

Output:

The value is already present in the deque : true  The final deque is given as :   55.8  22.3  89.0

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Java Deque removeLastOccurrence() Method with Examples

Java Deque removeLastOccurrence() Method

Syntax:

Parameter:

Return:

Throw:

Example 1

Example 2

Example 3

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