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In this article, we will learn how to solve the "Minimum Number of Jumps to Reach the End" problem using Java. Let's break it down step-by-step. The idea is to find the smallest number of jumps needed to get from the start to the end of an array. Each element in the array represents the maximum number of steps you can take from that position. Problem StatementGiven an array arr[], where each element represents the maximum number of steps you can move forward from that position, the goal is to start from the beginning of the array and ... Read More
When exploring machine learning, and artificial intelligence especially in probabilistic models and time-series analysis, you’ll likely come across two crucial concepts: Discrete & Continuous Markov Chains as well as Hidden Markov Models. Of them, the first one is the approach based purely on probability theory while the second one has certain differences in the structure, application and in fact, in the complexity level. To effectively use these differences it is crucial to comprehend them by employing into practical application such as speech to text conversion, finance, and natural language processing. This article will provide an overview of Markov Chains and ... Read More
A Git server on Ubuntu can help you host your repositories on a centralized server. This is particularly important for anyone working in a development team. In this tutorial, we will explain the details of setting up a Git server on Ubuntu including the installation of Git, Users and other Security considerations. What You’ll Need A machine with Ubuntu 20.04 or higher and access to a terminal and a basic knowledge of Linux as an operating system Root or sudo access to install software Basic knowledge of ... Read More
In this article, we will learn how to sort lists containing null values in Java and ensure these nulls are kept at the bottom while upper elements remain in order. This can be done using Comparator.nullsLast, which sorts the non-null elements and places all null elements at last. Problem Statement A list of strings with some string values and nulls is given. Write a Java program to sort a list placing nulls in the end. Input Initial List = ("Jack", null, "Thor", null, "Loki", "Peter", null, "Hulk") Output Initial List = [Jack, null, Thor, null, Loki, Peter, null, Hulk] List ... Read More
In this article, we will learn how to use the Properties class in Java to store and display key-value pairs. The Properties class is useful for handling configuration settings or storing data in a structured way, where both keys and values are strings. By using the put() method, we can easily add values to a property list and later retrieve or display these key-value pairs. This approach provides a simple and efficient way to manage data in a key-value format in Java applications. Problem Statement A properties list contains country-year pairs. Write a Java program to store values ... Read More
In this article, we will learn to sort the elements of the stack in descending order. A stack is a data structure that works on the LIFO (Last In First Out) principle which means that the last added item is removed first. One real-life example of a stack is browser history where the last used website appears first. In this article, we are going to discuss, how we can sort the element of stack in descending order in Java. Problem Statement In the given problem, we have a stack of unsorted integer elements, which we have to sort in descending ... Read More
In this article, we will learn to merge duplicate elements from a List in Java by using a TreeSet. This program will take a List of strings containing duplicate values, transfer the elements into a TreeSet, and display the unique, sorted elements. Using a TreeSet is ideal here because it automatically removes duplicates and orders the elements in natural order. Problem Statement Write a Java program to remove duplicate elements from a list using a TreeSet. The program should take a list with repeated elements, convert it into a TreeSet to eliminate duplicates, and display the unique, sorted elements. Input ... Read More
We live in an associated existence where more individuals are associated than at any other time in recent memory. The Internet of Things alludes to the aggregate organization of billions of actual gadgets surrounding us that are associated with the Web. These gadgets create information in unfathomable volumes, the executives and capacity of which are similarly significant. In any case, such information in their unique structure has no utilization except if dug for important data. This requires explicit area information, important experience, and the specialized ability of genuine specialists. To satisfy the rising needs of different IoT applications and administrations, ... Read More
Penetration TestingPenetration testing is a sub-category of Security Testing performed to detect vulnerabilities, threats and risks in a software that an attacker can take advantage of. The primary objective of performing this test is to identify and test all security vulnerabilities in the software. It is also referred to as Pen Test. The security vulnerabilities are uncovered by evaluating the software or application with malicious technologies. In this process, the weak points or aspects of a software are exploited with an authorized simulated attack.Penetration testing enables securing important data from outsiders and unauthorized persons, such as hackers. When a vulnerability ... Read More
What is a GUI? For a computer application, there are two sorts of interfaces. The Command Line Interface (CLI) is a program that allows you to write text and have the computer reply to it. The Graphical User Interface (GUI) is a method of interacting with a computer that uses graphics rather than words. The following are some of the graphical user interface components that may be used to interact with the application − Radio Button ... Read More