Deepak Prasad

Configure port forwarding in virtualbox NAT Networking using command line CLI using VboxManage GUI. ssh into virtualbox from windows port forwarding computer

Configure FTP Server and authenticate users from Active Directory for VSFTPD server in CentOS/RHEL 7 and 8 Linux. Connect FTP Server from AD user in Linux

Some of the task performed by the NumberFormat class in Java are Formatting Numbers, Setting number of Digits in Fraction part, Rounding Numbers, Formatting Percentage, Formatting Currency

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In this tutorial we'll show how we can use node affinity to schedule application pods as per our needs.

When operating with numbers and strings, many times while fetching the data from the text box, we fetch it as a string. Now, on back-end this data may be

The Kubernetes subPath property prevents overwriting of existing data by mounting a single file from the volume instead of mounting the whole volume. We'll

Kali Linux is one of the most popular Linux distributions used for Security auditing and Penetrations testing. It comes pre-installed with numerous (300+)

It is a traditional way to paginate with mongoose. Here, It simply uses limit and offset in SQL queries to paginate the data from database. If you are working

Shodan is a search engine but very different from regular search engines like Google, Yahoo, Bing, etc., which search the web for standard websites. Shodan

A Stack is a Last in First out(LIFO) data structure. Push and pop operations are used for insertion and deletion of a value from the stack respectively. In

In this article we explored three different methods which can be used in Java to find merge point of two lists i.e Brute Force Approach, Marking Node as visited and Using HashSet

The Tree is a non linear data structure consisting of nodes and edges. Depending upon the type of tree, it can have 0 or more child nodes. There are two ways to calculate the height of a tree using Recursive Approach or …

In this tutorial, we covered four different approaches to convert char to int in Java, Using ASCII Values, Integer.parseInt() method, Character.getNumericValue() method and Subtracting '0'

In order to get sublist either in an ArrayList or LinkedList, we have to use the sublist() method which is a method of AbstractList class.

In this tutorial we will cover multiple examples to understand how to split string into array for different scenarios

There are three different ways to return an array from a function in Java as listed below: Return an array of primitive type, Return an array of objects, Return a multidimensional array

There are several ways to convert the set to list in java as listed below. Using looping, ArrayList Constructor, LinkedList Constructor, List.addAll() Method, List.copyOf() method, stream API, Apache Commons Collections

There are five ways to convert a String to Date in java as listed below. Using SimpleDateFormat Class, LocalDate Class, DateTimeFormater Class, Instant Class, Apache Commons Lang - DateUtils

There are several ways to compare characters in java as listed below, Using Relational Operators, Using Character.compare(), Using Character.hashCode(), Using compareTo() method, Using equals() method, Using charValue() …

In this tutorial we cover following 6 different methods to implement hashing in java. Using Hashtable Class, HashMap Class, LinkedHashMap Class, ConcurrentHashMap Class, HashSet Class and LinkedHashSet Class

The list below shows five different ways in which we can copy a file in Java. Using FileInputStream and FileOutputStream Using Paths and Files Using RandomAccessFile Class Using FileChannel Using Files.copy()

In Java, there are three different ways to check if file exists or not such as Using exists method of Legacy I/O File class, Using isFile method of File class, Using exists method of NIO File class

The list below shows eight different ways to get current date in Java Using java.util.Date, java.util.Calendar, java.time.LocalDateTime, java.time.LocalDate, java.time.Year, java.time.MonthDay, java.time.OffsetDateTime, …

We can reverse a list in Java using four different ways i.e. Using add and remove method, Using recursion, Using reverse method of Collections, Using ListIterator Interface

We can use any of the five shown approaches as per the program requirement to return multiple values in Java. Return an array of specific type or object, Return using the Pair class of util package, Return a String …

There are multiple ways in Linux to rename single or multiple files using one line commands or in script

In this tutorial we learned how to check if path is subdirectory of another directory using Node.JS. Tutorial on NodeJS Path module.

Step by Step instructions to configure local and offline yum or dnf repository server using Nginx on Rocky Linux 8

In this article, you learned how you can use the Node.Js forEach() to iterate over an iterable in JavaScript. When iterating over array elements, you should opt for forEach() whereas using map() and reduce() would work …