Update blogpost

Author: gauravkukade

_posts/collections/arraylist/2021-11-24-arraylist-in-java.md

@@ -105,6 +105,7 @@ By default, Collections are heterogeneous i.e. they can save all types of object
 |[`retainAll(Collection c)`](http://coderolls.com/arraylist-retainall-method/)|This method method retains all the elements of the collection passed as a parameter in the list.|
 |[`trimToSize()`](http://coderolls.com/arraylist-trimtosize-method/)|This method trims the capacity of this ArrayList instance to be the list's current size.|
 |[`indexOf(Object o)`](http://coderolls.com/arraylist-indexof-method/)|This method returns the index of the first occurrences of the object specified. It returns -1 if the specified object `o` is not present in the list.|
+|[`lastIndexOf(Object o)`](http://coderolls.com/arraylist-lastIndexof-method/)|This method returns the index of the last occurrences of the object specified. It returns -1 if the specified object `o` is not present in the list.|
 
 
 

_posts/collections/arraylist/2022-01-04-arraylist-ensurecapacity-method.md

@@ -3,8 +3,11 @@ layout: post
 title: "ArrayList ensureCapacity() method in Java"  
 author: gaurav  
 categories: [Collections, ArrayList]  
-description: "In this short tutorial, we will see the ensureCapacity(int minCapacity) method of the Arraylist class in Java."  
+
+description: "In this short tutorial, we will see the ensureCapacity(int minCapacity) method of the Arraylist class in Java." 
+
 ---
+
 In this tutorial, we will see the `ensureCapacity(int minCapacity)` method of the  [ArrayList class in Java](https://coderolls.com/arraylist-in-java/). 
 
 ## Introduction  

_posts/java-8-fetaures/2022-01-06-lambda-expressions.md

@@ -0,0 +1,14 @@
+---
+
+layout: post
+
+title: "Lambda Expressions in 8 java"
+
+author: gaurav
+
+categories: [Collections, ArrayList]
+
+description: "In this article, we will see how to remove an element from an ArrayList."
+
+---
+