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
Server Side Programming Articles
Page 1598 of 2109
Swift Program to pad a string with 0\'s on the right side
In Swift, pad a string with 0’s is to add 0 in the given string either on the left side or on the right side, for example, 234000 or 00021. Here we are going to pad a string with 0’s on the right side using the following methods − Using User-defined function Using pre-defined function Method 1: Using User-Defined Function To pad a string with 0’s on the right side we create a user-defined function which takes the input string and the total length of the resultant string as arguments and returns the resultant string. Example Input: String ...
Read MoreSwift Program to pad a string with 0\'s on left side
In Swift, pad a string with 0’s is to add 0 in the given string either on the left side or on the right side, for example, 34000 or 0003232. Here we are going to pad a string with 0’s on the left side. Example Input: String = "151" newLength = 6 Output: 000151 Here, we pad the original string with three zeros on the left side. Algorithm Step 1 − Create a function which takes the original string and the length of the new string as arguments. Step 2 − Calculates the total number of ...
Read MoreSwift Program to Implement the queue data structure
A queue is a data structure which worked upon FIFO(first in first out) principle. In a queue, both ends are open, so that we can add a new element from one end called the rear or tail, this operation is known as enqueue and remove element from another end called the front or head, this operation is known as dequeue. Although Swift does not support any in-built queue data structure, still we can implement queue using various ways like link-list, structure, class, array, etc. You can use any of the methods to implement the queue data structure according to ...
Read MoreSwift Program to Implement LinkedList
A Linked list is a data structure which is used to store and manage data. It is a sequence of nodes where each not contains two things: data and the reference to the next node in the given sequence. Using a linked list we can easily insert or remove elements from any position inside the list. Linked lists are of two types − Singly-linked list− It moves in only one direction because each node has a reference to the next node. But the next pointer of the last node points to NULL. Doubly linked list− It moves in ...
Read MoreSwift Program to Get a Character From the Given String
In Swift, we can easily get a character from the given string with the help of their respective index value. So to get the index of the specified character Swift provides an inbuilt function named index(). This function will return an index which is the specified distance from the specified index. Example Input: String = "Ram got first place" index = 5 Output: "o" Here, the given index value is 5 so the resultant character is “o”. Syntax func index(x:String.index, offsetBy: Int) Here, x is the valid index of the sequence and offsetBy is the ...
Read MoreSwift Program to Find the Duplicate Characters in a String
In Swift, a string is a collection of characters so it can contain duplicate as well as unique characters. So to find the duplicate characters in a string we create a dictionary/array to store the count of each character and then add those characters in the array whose count is greater than 1. Example Input: “sky is pink” Output: Duplicate char: [“s”, “i”, “k”] Here, the input string contains three duplicate characters that are “s”, “i”, and “k”. To find the duplicate characters in a string we are going to use the following methods − User-defined function ...
Read MoreSwift Program to demonstrate the string interpolation
In Swift, String interpolation is a great feature to create a new string by embedding the value of a variable, constant, function and literal directly in the given string literal. Or we can say that using string interpolation we can create a string by combining static text and dynamic values. Syntax var myString = “hello! \(x). How are you?” We can perform string interpolation by wrapping a string literal or constant or variable in a pair of parentheses that is prefixed by a backslash(\) for example, \(x). Example 1 In the following Swift program, we will demonstrate how ...
Read MoreHow to read text file into a list or array with Python?
Python has built in file creation, writing, and reading capabilities. In Python, there are two sorts of files that can be handled: text files and binary files (written in binary language, 0s, and 1s). There are 6 modes of accessing files. To read a text file we use read only ('r') to open a text file for reading. The handle is at the beginning of the document. There are several ways to read a text file into a list or array using python Using open() method The open() function creates a file object from an open file. The filename ...
Read MoreConversion Functions in Pandas DataFrame
Pandas is one of the most potent libraries in python that provide high-performance data manipulation and analysis tools, it allows us to work with tabular data like spreadsheets, CSV, and SQL data using DataFrame. A DataFrame is a 2-dimensional labeled data structure it represents the data in rows and columns format. Data present in each column may have different data types. DataFrame: Integers Floats Strings Dates 0 1.0 1.300 p 2023-05-07 1 2.0 NaN y 2023-05-14 2 5.0 4.600 t 2023-05-21 3 3.0 1.020 h 2023-05-28 4 6.0 0.300 o 2023-06-04 5 NaN 0.001 n 2023-06-11 The DataFrame demonstrated above is having 6 rows and 4 columns and the data present in each row has different datatypes. And Conversions functions ...
Read MoreConvert a NumPy array to a Pandas series
A Numpy array is an N-dimensional array also called a ndarray, it is a main object of the NumPy library. In the same way, the pandas series is a one-dimensional data structure of the pandas library. Both pandas and NumPy are validly used open-source libraries in python. Below we can see the one-dimensional numpy array. NumPy array array([1, 2, 3, 4]) The pandas Series is a one-dimensional data structure with labeled indices and it is very similar to a one-dimensional NumPy array. Pandas Series: 0 1 1 2 2 3 ...
Read More