Programming Articles - Page 505 of 3363

In this article, we will write a go language program to print the upper triangular matrix of any given matrix. Introduction − A square matrix is called an upper triangular matrix if it has zero values below the principal diagonal. A matrix is displayed in its upper triangular form only if it is square. i.e. it must have the same number of rows and columns. The order of a typical upper triangular matrix is N X N. Method 1: Display Upper Triangular Matrix using For Loops In this method, we will write a go language program to display upper ... Read More

In this article, we will write a go language program to remove duplicates from an array. To achieve this we will be using two approaches. In the first one, we will use the array of strings, and in the second one; we will be using an array of integers. Method 1: Remove Duplicates from an Array of Strings using The Make() Function In this example, we will write a go language program to remove duplicates from the array of strings using a user-defined function. The function will accept the array of strings as an argument and will return the final ... Read More

In this article, we will learn how to write a swift program to add two matrices using a multi-dimensional array. A matrix is a mathematical structure in which the elements are present in rows and columns format. For example, the first element is present at the a00 location, the second at a01, and so on. Therefore, to add two matrices we are going to use + operator to add the elements of two matrices like a00 + b00 and then store the sum into a new matrix. For example: Matrix 1 − $\mathrm{\begin{bmatrix}2 & 3 & 4 ewline5 & 2 ... Read More

A hashtable is a data structure that consists of a collection of key-value pairs. The hashtable collection uses a hash function to compute the hash code of the key. A hashtable can also be defined as a non-generic collection of key-value pairs. The hash code of each key is computed using a hash function and is stored in a different bucket internally. At the time of accessing values, this hash code is matched with that of the specified key, and results are returned. Unlike other data structures like the stack, queue, ArrayList, etc. that store single values, hashtable collection stores ... Read More

A Hashtable is a non-generic collection of key-value pairs that are arranged as per the hash code of the key. A Hashtable is used to create a collection that uses a hash table for storage. The hashtable optimizes the lookup by calculating the hash code of each key and stores it internally into a basket. When we access the particular value from the hashtable, this hashcode is matched with the specified key. This hashtable collection is defined in the System.Collections namespace of C#. The class that represents the hashtable collection is the “Hashtable” class. This class provides constructors, methods, and ... Read More

The hashtable collection in C# is a non-generic collection of elements. Each element of the hashtable is represented as a key-value pair. The keys of the hashtable are non-null and unique. The values can be duplicated and/or null. The Hashtable class of C# Systems.The collections interface is the representation of a hashtable collection. This class provides various constructors, methods, and properties to manipulate the hashtable collection. We can also convert hashtables into other collections like arrays, ArrayList, etc., and also to a string representation. In this article, let’s discuss how we can convert a hashtable collection into a string. How ... Read More

The hashtable collection in C# is a non-generic collection of items represented as key-value pairs. Each key is a unique, non-null element. The value on the other hand can be duplicated and/or null. The Hashtable class in C# represents the hashtable collection. This class provides the relevant methods to create objects, alter items in the collection, etc. The hashtable collection can be expressed as an array or ArrayList in C#. In this article, let’s discuss how we can convert a hashtable collection into an array. How to Convert Hashtable into an Array? To convert the hashtable into an array, the ... Read More

As per the problem statement we need to find all the Emails present in the file. Let’s explore the article to see how it can be done by using Java programming language. To Show You Some Instances Instance-1 Suppose there is given paragraph and it contains many different email ids and we want to extract all the mail id present in that paragraph. For e.g. − “I am a boy with email boy54@gmail.com. My friend’s email is friend78@gmail.com.”.” From the above paragraph, we need to take out the given two mail id in the paragraph i.e., boy54@gmail.com and friend78@gmail.com.  Instance-2 ... Read More

In this article, we will compare two different text files which are saved in our system. We will check line by line of each text file, by comparing those we can identify the similarities and differences. Let’s see how we can do it by using the Java programming language. To Show You Some Instances Instance-1 Below figure depict two different text files with same content and hence output will be two files with same content. Instance-2 Below represents two files, say file1.txt and file2.txt with their content. file1.txt This is amazing. Java Language. file2.txt This is amazing. Python ... Read More

As per the problem statement, we need to find the first and last word of the given String. Let’s explore the article to see how it can be done by using Java programming language. To Show You Some Instances Instance-1 Suppose there is String “Java is a well-known high-level, class-based object-oriented programming language that Sun Microsystems created and first distributed in 1995. Over 3 billion devices run Java, which is currently owned by Oracle” After printing the first and last word of this String i.e “Java” and “Oracle”. Instance-2 Suppose there is String “For the creation of their desktop, web, ... Read More