Programming Articles

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Java Program to Compute the Area of a Triangle Using Determinants

Bharti Kumari
Bharti Kumari
Updated on 10-Apr-2023 521 Views

Introduction The Java program to compute the area of a triangle using determinants is a concise and efficient program that calculates the area of a triangle given the coordinates of its three vertices. This program is useful for anyone studying or working with geometry, as it demonstrates how to use basic arithmetic and algebraic calculations in Java, and how to read in user input using the Scanner class. The program prompts the user to enter the coordinates of three points of the triangle, which are then read in and used to calculate the determinant of the matrix of coordinates. The ...

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Java Program to search ArrayList Element using Binary Search

Rudradev Das
Rudradev Das
Updated on 10-Apr-2023 659 Views

Searching is a sorting process to find a particular information from a set of random elements. In a Linear Data structure, there are two types of searching process - Linear Search Binary Search Linear search is a simple searching method by which we can find an element from a data source in a sequential manner. For this searching process the best execution time is 1 and worse is always considered as n. Binary search is a searching process of a particular key element from a stock of multiple elements which follows divide and conquer approach. In this search ...

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Java Program to Check the Accessibility of an Static Variable By a Static Method

Bharti Kumari
Bharti Kumari
Updated on 10-Apr-2023 393 Views

Introduction In Java, we can define variables and methods as static. A static variable or method belongs to the class itself rather than to the individual objects of the class. Therefore, we can access a static variable or method using the class name, without creating an object of the class. In this program, we will explore how to check the accessibility of a static variable by a static method. We will define a class with a static variable and a static method that accesses the variable. We will then call the static method to check if it can access the ...

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Check If the Rune is a Letter or not in Golang

Sabid Ansari
Sabid Ansari
Updated on 07-Apr-2023 2K+ Views

There is built-in support for Unicode, including its rune type, in the statically-typed computer language Go. A Unicode code point is represented by a rune, which is the equivalent for the int32 type. There are various methods for determining if a rune is a letter or not in the Go language. In this article, we'll explore how to check if a rune is a letter or not in Go, and we'll provide examples of how to do that using different techniques. Why do we need to check If a Rune is a Letter? A rune in Go is a Unicode ...

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Delete Elements in a Slice in Golang

Sabid Ansari
Sabid Ansari
Updated on 07-Apr-2023 14K+ Views

Slices in Golang are dynamically-sized sequences that provide a more powerful interface than arrays. They are commonly used for storing collections of related data. Sometimes, we may want to delete elements from a slice. In this article, we will discuss how to delete elements in a slice in Golang. Deleting Elements in a Slice In Golang, we can delete elements from a slice using the built-in append() function. Here's how it works − ExampleHere's an example of how to use the deleteElement() function to delete an element from a slice −package main import "fmt" func deleteElement(slice []int, index ...

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Copy the Sign of Given Number in Golang

Sabid Ansari
Sabid Ansari
Updated on 07-Apr-2023 310 Views

In Golang, copying the sign of a given number is a common operation that may be needed in certain scenarios. For example, when performing arithmetic operations on numbers, it may be necessary to ensure that the sign of the result matches the sign of one of the operands. In this article, we will explore how to copy the sign of a given number in Golang, and discuss some use cases where this operation might be useful. Copying the Sign of a Given Number in Golang To copy the sign of a given number in Golang, we can use the math.Copysign() ...

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Copy an Array by Value and Reference into Another Array in Golang

Sabid Ansari
Sabid Ansari
Updated on 07-Apr-2023 4K+ Views

In Golang, arrays are fixed-size data structures that hold a collection of values of the same type. In some cases, it may be necessary to copy an array to another array either by value or by reference. In this article, we will explore how to copy an array in Golang both by value and by reference. Copying an Array by Value in Golang In Golang, when you assign an array to another variable or pass it as a parameter to a function, it is copied by value. This means that any changes made to the copied array will not affect ...

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Compressing a File in Golang

Sabid Ansari
Sabid Ansari
Updated on 07-Apr-2023 975 Views

Data compression is a process of reducing the size of data in order to save space or transmit data faster. Golang provides several libraries for compressing and decompressing data. In this article, we will discuss how to compress a file in Golang using the "compress/gzip" package. What is gzip Compression? gzip is a file format and a software application used for file compression and decompression. It is based on the DEFLATE algorithm, which is a combination of LZ77 and Huffman coding. gzip compresses a file into a smaller size, making it easier to store and transmit over the network. Compressing ...

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Composition in Golang

Sabid Ansari
Sabid Ansari
Updated on 07-Apr-2023 6K+ Views

Composition is a powerful concept in object-oriented programming that allows creating complex types by combining smaller, simpler types. It enables building new types that have the functionality of several existing types, without the need to inherit from them. In Go, composition is achieved using struct embedding, a language feature that allows embedding one struct type inside another. In this article, we will explore how composition works in Go and how it can be used to create more flexible and modular programs. What is Composition? Composition is a mechanism that enables combining simpler types to create more complex ones. It is ...

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Comparison between Go & Node.js

Sabid Ansari
Sabid Ansari
Updated on 07-Apr-2023 324 Views

When it comes to choosing the right language for a project, developers often compare different programming languages to find the best fit. In this article, we will compare two popular programming languages, Go and Node.js, to help you make an informed decision. Comparison between Go & Node.js Go and Node.js are both open-source, server-side programming languages. Go was developed by Google in 2009, while Node.js was developed by Ryan Dahl in 2009. Both languages have gained a lot of popularity in recent years, and they are often used for similar tasks, such as building web applications and APIs. ...

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