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You can use the popen and pclose functions to pipe to and from processes. The popen() function opens a process by creating a pipe, forking, and invoking the shell. We can use a buffer to read the contents of stdout keep appending it to a result string and return this string when the processes exit. Example Here is the following example showing an execution of a command and getting the output of the command within C++ using POSIX. #include #include #include #include using namespace std; string exec(const string& command) { char buffer[128]; string result ... Read More
Centering content vertically in a full-screen div can be challenging if you are unfamiliar with Tailwind's utilities. Tailwind CSS has many utility classes, but to use them effectively, you must understand how they work and the best ways to apply them. Approaches for Vertically Aligning Content in a Div Tailwind CSS provides a wide range of utility classes that support effective alignment of the content within an element. We can vertically align div content in Tailwind CSS using the following approaches. Using Flexbox Using Grid Using ... Read More
Stream API was introduced by Java 8 for processing collections of data by a powerful and expressive way. One common question that arises when using streams is: What do I need to do to break out of, or return from, a forEach operation? In traditional loops you can break or return early. But the forEach method in streams doesn’t make this easy. This article examines why this is the case and examines alternate ways for early termination in the stream processing system.Read More: Java Stream API Improvements. Understanding Stream forEach ... Read More
Tracking differences between elements in an array is a fundamental task in data analysis and software development. Whether you're analyzing trends in numerical data, measuring changes over time, or debugging an application's behavior, calculating these differences can provide valuable insights. In JavaScript, this task is often approached using various techniques, including loops and modern functional programming methods like the map() function. Here are two methods to calculate differences between elements in an array: Iterative Loop and Functional Programming using the map. Problem Statement We are given an array of Number literals, and we are required to write a function that returns ... Read More
A subarray with a sum of 0 is a sequence of contiguous elements within an array where the sum of all elements in that sequence equals zero. Identifying such subarrays is a common problem in data analysis and coding challenges. The prefix sum technique efficiently solves this problem. In this article we will find if there is a subarray with 0 sum using JavaScript. Continuously calculate the prefix sum while traversing the array and use a hash map to store sums seen so far. Check if the current prefix sum ... Read More
An ordered list is numbered and an unordered list is not numbered it can be created with the tag and define the items of the list using the tag . We can create 4 types of unordered list in HTML − In this article we are having an unordered list, our task is to create an unordered list with image bullets in HTML. disc − This creates an unordered list marked to a bullet (default). ... Read More
An unordered list is unordered list of items marked with bullets, circle, disc and square. It gives you the ability to control the list in the context. Allow us to group a set of related items in lists. HTML support ordered list, unordered list and we have to use the tag, to create unordered list in HTML. The tag defines the unordered list. We use li tag to start list of items. The list of items can be marked as bullets, square, disc and circle. By default, the list items in the context marked with the bullets. ... Read More
Overview In HTML we can create the list in two types which are of ordered list and unordered list. So when the lists are created these are followed up with the numbering, alphabet or roman numbers in the ordered list and in the unordered list as dots. So sometimes we need to change these bullets with an image. This can be achieved using the Cascading Styles Sheet (CSS) styling property list-style-image. By using any image url or an image address we can set it to the value of list-style-image which will show as a bullet before the list items. In ... Read More
Overview Buttons are the components in HTML which perform a certain action when clicked. Various buttons perform various actions. The HTML has some predefined buttons with a certain type of action. In a HTML form when the tag is used by default, the simple button inside the form tag is of type submit. So when you click on a button inside the form tag it will submit the form on your desired path and depends on the GET and POST request. The submit location is defined in the action attribute of the form. The HTML form by default is ... Read More
A link is a connection from one Web page to another web page. We can add page links to a web page. HTML links are hyperlinks. The tag defines a hyperlink and used to link from one page to another. The href attribute is used with the anchor tag, which indicates the link's destination. To make page links in an HTML page, use the and tags, with href attribute used to define the links. We should use the … tags inside … tags. The link text is visible. Clicking on the link text, will navigate to the ... Read More