Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Programming Articles
Page 1860 of 2547
Swift Program to Get key from Dictionary using the value
A dictionary is a collection of key-value pairs. Which means keys and values are interrelated with each other. So using a value we can easily get single or multiple keys from the given dictionary. Algorithm Step 1 − Create a dictionary with key-value pairs. Step 2 − Then create a function which will return the key from the dictionary using the value. Step 3 − Inside the function we run a for-in loop which iterates over the key-value pairs of the given dictionary. Step 4 − Now check if the current value is equal to the specified value. If ...
Read MoreSwift Program to Find the Frequency of Characters in a String
In Swift, the frequency of all the characters in a string means how much time a character repeats in the given string. For example, “Swift tutorial”, here “t” repeats 3 times in the given string, “i” repeat 2 times in the given string. So in this article, we are going to find the frequency of all the characters in the string. Algorithm Step 1 − Create a variable to store a string. Step 2 − Create a dictionary to store the character and its count. Step 3 − Run a for loop to iterate over each character in the ...
Read MoreSwift Program to delete prefix substring from the given string
To delete the prefix substring from the given string first, we check if the given substring is present in the specified string or not using the inbuilt hasPrefix() function. Then find the index of the prefix substring using the inbuilt index() function and finally remove the prefix substring. Input String = “Today is cloudy day” SubString = “Today” Output “is cloudy day” Here, the specified substring is found in the given string, so in the resultant string, we removed the substring from the start of the input string. Algorithm Step 1 − Create a string. Step 2 ...
Read MoreSwift Program to count a specified character inside the string
In Swift, to count how many times a specified character occurs in the given string we create a function. It will increase the value of the counter by one whenever the specified character appears in the given string and then return the final count at the end of the given string. Input String = “Today is cloudy day” Character = “y” Output 3 Where, character “y” appears three times in the given string so the output of the input is 3. Algorithm Step 1 − Create a function that returns the specified character's total occurrence. Step 2 ...
Read MoreSwift Program to convert the array of characters into the string
To convert the array of characters into a string Swift provides the following methods − Using String() initialiser Using append() method Input array = [“S”, “w”, “i”, “f”, “t”] Output Swift Here we join all the characters given in the array to create a string. Method 1: Using String() Initialiser To convert the array of characters into a string we can use String() initialisers. The String() initialiser will create the object of a string. Here we use parameterise string initialiser. Syntax Swift(value) Here value represents the array which we want to convert into a string. ...
Read MoreWhat are the differences between list, sequence and slice data types in Python?
We will learn about the differences between list, sequence, and slice data types in Python in this article. Lists − In Python, a list is a type of data that can hold multiple values in a single variable. You can think of it like a shopping list that contains multiple items. For example, you could have a list of numbers like [1, 2, 3, 4, 5] or a list of names like ["John", "Jane", "Bob", "Sue"]. Number_List = [1, 2, 3, 4, 5] Name_List = ["John", "Jane", "Bob", "Sue"] Sequences − In Python, a sequence is a type of data ...
Read MoreRenaming Linux Files in Batches
Introduction If we want to rename any file in Linux, we use “mv” command. But mv command can only rename one file at a time, it can not rename multiple files at one time in terminal. If we want to rename multiples files then we have to use mv command in different way . Also there are other commands available like “rename” , “mmv”, “renameutils” etc. Though some of these commands are not installed default in Linux , we need to install them separately. In this artile, let us understand each command with some example. Approach 1: Using “mv” command ...
Read MoreHow to pass a Slice to Function in Golang?
Golang, also known as Go, is a popular programming language that is known for its simplicity, efficiency, and performance. Slices are an important data structure in Golang that allows us to work with a sequence of elements of the same type. In this article, we'll discuss how to pass a slice to a function in Golang, and provide a step-by-step guide on how to achieve this task. What is a Slice in Golang? A slice in Golang is a dynamic array, which means it can grow or shrink as needed. It's a powerful data structure that allows us to work ...
Read MoreHow to Map a Rune to Uppercase in Golang?
Golang, also known as Go, is a powerful programming language that offers efficient and scalable solutions for building modern software. One of the essential features of Golang is the ability to handle Unicode characters, which makes it possible to work with various languages and scripts. In this article, we'll discuss how to map a rune to uppercase in Golang, and provide a step-by-step guide on how to achieve this task. What is a Rune in Golang? A rune in Golang is a Unicode code point, which represents a single character. In Golang, the type for a rune is rune, and ...
Read MoreHow to Map a Rune to Title Case in Golang?
If you're working with runes in Golang and need to convert them to title case, it can be a bit tricky. However, with the right tools and techniques, it's certainly achievable. In this article, we'll explore how to map a rune to title case in Golang, providing you with a step-by-step guide to help you achieve your goals. Understanding Runes in Golang Before we dive into how to map a rune to title case in Golang, let's take a moment to understand what runes are in this programming language. In Golang, a rune is a Unicode code point, which can ...
Read More