In this guide, we will see how to convert Integer List to int Array in Java. There are several ways, you can do this conversion,… [Read More]
Convert a Set of String to a comma separated String in Java
Problem description: We have given a Set that contains String elements. Our task is to convert this set of string to a comma separated string… [Read More]
How to Convert ArrayList to HashSet in Java
There are several ways to convert ArrayList to HashSet. In this guide, we will discuss the following ways with examples: Passing ArrayList to constructor of… [Read More]
Convert Comma Separated String to HashSet in Java
In this guide, we will discuss, how to convert a comma separated string to HashSet in Java. We will be using the String split() method… [Read More]
When to use ArrayList and LinkedList in Java
In this guide, we will discuss, when to use ArrayList and when to use LinkedList in Java. There are multiple similarities between these classes. However… [Read More]
How to Increase the capacity of ArrayList
When we create an ArrayList in Java, it is created with a default capacity of 10. However an ArrayList can be automatically resized if more… [Read More]
Perform Binary Search on ArrayList in Java
In this tutorial, you will learn how to perform binary search on ArrayList in Java. 1. Perform binary search on ArrayList using Collections.binarySearch() In this… [Read More]
Add Multiple Items to an ArrayList in Java
In this tutorial, you will learn how to add multiple items to an ArrayList in Java. 1. Add multiple items using adAll() method The addAll()… [Read More]
Difference between Array and ArrayList
In this guide, we will discuss the difference between Array and ArrayList. What is an Array? An array is a collection of elements of similar… [Read More]
Difference between length of Array and size of ArrayList in Java
In this tutorial, you will learn the difference between length of Array and size of ArrayList in Java.. Length of Array: // creating an array… [Read More]
How to make an ArrayList read only in Java
A read only ArrayList means that no modification operations is allowed to be performed on ArrayList. This list cannot be modified by adding, removing or… [Read More]
Deque Interface in Java Collections
Deque is a Queue in which you can add and remove elements from both sides. In the Java Queue tutorial we have seen that the… [Read More]
PriorityQueue Interface in Java Collections
In the last tutorial, we have seen how a Queue serves the requests based on FIFO(First in First out). Now the question is: What if… [Read More]
Queue Interface in Java Collections
A Queue is designed in such a way so that the elements added to it are placed at the end of Queue and removed from… [Read More]
Comparator Interface in Java
In the last tutorial, we have seen how to sort objects of a custom class using Comparable interface. By using Comparable we can sort the… [Read More]
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