Various ways to iterate over List of HashMap in Java
In this article, we will discuss different ways to iterate through List of HashMap. Already, in earlier articles, we have discussed following topics Iterating over Read More
Tag: ArrayList
Sorting list of objects on multiple fields using Comparator in Java
In previous articles, we have discussed how to sort list of objects on the basis of single field using Comparable and Comparator interface Read below articles Read More
Various ways to iterate over HashMap of ArrayList in Java
In previous articles, we have discussed various ways to iterate through Map but those are with String object only i.e.; both keys and values are in String-type only Read More
How to serialize and de-serialize ArrayList in Java
In this article, we will discuss how to serialize list of objects and also de-serializing same Already we have seen how to serialize and de-serialize objects Read More
CopyOnWriteArrayList v/s SynchronizedList
In this article, we will discuss difference between CopyOnWriteArrayList and SynchronizedList classes in detail i.e.; CopyOnWriteArrayList v/s SynchronizedList Lets us move on and discuss key differences Read More
CopyOnWriteArrayList v/s ArrayList
In this article, we will discuss difference between CopyOnWriteArrayList and ArrayList classes in detail i.e.; CopyOnWriteArrayList v/s ArrayList Lets us move on and discuss key differences Read More
Remove operation with CopyOnWriteArrayList
In this article, we will discuss what happens when element is removed from CopyOnWriteArrayList and ArrayList while iterating using Iterator i.e.; remove() operation with CopyOnWriteArrayList; Read More
CopyOnWriteArrayList with Read and Update operations simultaneously
In this article, we will discuss how can we achieve both read (iterate) and modify (remove/add) operations simultaneously by 2 different threads using CopyOnWriteArrayList which Read More
CopyOnWriteArrayList class
In this article, we will discuss CopyOnWriteArrayList class – the implementation class for List interface in detail This is the thread-safe version of ArrayList, where Read More
How to remove elements while iterating collection object
In this article, we will discuss how to remove elements from ArrayList while iterating Collections objects using Iterator interface Note: ConcurrentModificationException will be thrown when Read More
How to get minimum element from ArrayList
In this article, we will discuss how to get minimum element from ArrayList using Collections class’s utility min() method To get minimum element from Read More
How to get maximum element from ArrayList
In this article, we will discuss how to get maximum element from ArrayList using Collections class’s utility max() method To get maximum element from Read More
Converting Ordered ArrayList into Sorted TreeSet
In this article, we will discuss how to convert Ordered ArrayList into Sorted TreeSet We can sort ArrayList in both ascending and descending order, by Read More
Conversion of ArrayList into HashSet to remove duplicate elements
In this article, we will discuss how to remove duplicate elements from ArrayList How to convert ArrayList to HashSet ? use inter-conversion collection constructor Read More
How to reverse LinkedHashSet contents
In this article, we will discuss how to reverse the contents of LinkedHashSet Key points about LinkedList: LinkedHashSet maintains insertion-order as it uses doubly-linked list Read More