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To find the largest string formed by choosing words from a given sentence, a user should know about the lexicographically largest string. A lexicographically largest string is a string, when sorted alphabetically, it would appear at the last if we form all possible strings from the selected words. For example: {lion, zebra, apple} will be lexicographically sorted as {apple, lion, zebra}. In this article, we have been given a string and a pattern. Based on this pattern, we have to find the lexicographically largest string matching the given pattern by choosing words from the sentence using C. Here is an ... Read More
Constructors are special methods used to initialize objects, whereas methods are used to execute certain statements. Constructors and methods are both blocks of code inside a class, but they have different purposes. In this article we will learn about the main differences between a constructor and a method. What is a Constructor in Java? A constructor is a special method in Java that is automatically called when an object is instantiated. Constructors have the same name as the class and do not have a return type. Its main purpose is to set initial values to the newly created object. ... Read More
In this problem we are given an array of numbers, and we have to find the largest, smallest, second largest, and second smallest elements in an array in Java. Let’s understand the problem better with the help of an example: Input int arr[] = {55, 10, 8, 90, 43, 87, 95, 25, 50, 12}; Output Smallest element = 8 2nd Smallest element = 10 Largest element = 95 2nd Largest element = 90 To solve this problem, use the following approaches: Using Arrays.sort() Using nested for-loops Optimized one-pass approach Using Arrays.sort() In this ... Read More
Given a list of numbers, our task is to calculate the average of this list. The average of a list can be found by adding all the elements in the list and dividing the sum by the total number of elements. In this article we will learn different methods to implement this in Java. There are multiple ways in Java to find the average of a list. In this article we will explore two different approaches: Using Java Streams Using for loop Find Average of a List Using Java Streams This approach shows how to find ... Read More
Scanner and BufferedReader classes are used to read input from an external system. Scanner is normally used when we know input is of type string or of primitive types, and BufferedReader is used to read text from character streams while buffering the characters for efficient reading of characters. What is Scanner Class? The Scanner class is included in the java.util package. It is mostly used when the data type of the input is already known. We commonly use it with data ty+pes like strings, integers, floats, and booleans. It has built-in methods like nextInt(), nextDouble(), and nextLine() that help ... Read More
Abstract class and concrete class are fundamental concepts of object oriented programming in Java. In this article, we will learn the differences between an abstract class and concrete class. What is an Abstract Class? An abstract class is a class that cannot be used to create objects. It can only be accessed using its subclasses. It can contain abstract methods, which are methods without a body. It acts as a blueprint for its subclasses. It can also contain concrete or regular methods. Example This example shows how to implement an abstract class in java: ... Read More
Claude 3.7 Sonnet and ChatGPT 4.0 are popular AI tools that are used for content generation, image generation, and more. Claude 3.7 Sonnet is used mainly very strong at coding, math, logical reasoning, while ChatGPT 4.0 is often better at natural language understanding and creative writing. In this article, we will discuss the important differences between Claude 3.7 Sonnet and ChatGPT 4.0. But before discussing the differences, let us first discuss their basics. What is a Claude 3.7 Sonnet? Cloud 3.7 is a new AI model tool launched by Anthropic in February 2025. This is one of its most innovative ... Read More
A collection is an object that holds a reference to other objects. A Java array list is one of the collections. it is a resizable array and is represented by the class named ArrayList. This java.util.Collections class provides methods to manipulate the collection objects in Java. We can make an ArrayList read-only using the Collections.unmodifiableList() method. Need to make a ArrayList Read-Only Sometimes we may need to make the ArrayList object read-only - To protect data from unnecessary or unwanted changes. ... Read More
The insertion sort technique is an in-place comparison-based sorting algorithm used to sort the numbers in an ascending or descending order. It is similar to the card sorting technique. In this technique, we pick up one element from the data set and shift the data elements to make a place to insert the picked-up element into the data set. In this article, we have an array of integers. Our task is to implement insertion sort in C++ to sort the given array. Example Here is an example of an array before sorting and after sorting using insertion sort: ... Read More
In this article, we will learn about the importance of OverlayLayout in Java. In Swing, layout managers offer various means of arranging components within a container like JPanel and JFrame. OverlayLayout provides the creation of layered or overlapping GUIs in Java. What is an OverlayLayout? An OverlayLayout is a subclass of Object class and it can arrange the components over the top of each other and uses components specified alignments to position them relatively. When different sizes are given to any of the components, we can see all the components. Syntax The following is the syntax: LayoutManager overlay = new ... Read More