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A string is a group of characters that can represent a single word or a whole sentence. In Python there is no need to declare strings explicitly we can directly assign them to a literal. Therefore, easy to use them. A string is an object of the String class, which has multiple methods to manipulate and access strings. In this article, we are going to find out how to get a string left padded with zeros in Python. Using the rjust() function One way to achieve this is using the built-in string function named rjust(). The width argument is the ... Read More
A string is a group of characters that can represent a single word or a complete sentence. In Python there is no need to declare variables explicitly using the datatype specifier you can directly assign them to a literal. Therefore, compared to other technologies like Java it is easy to use Python strings. For manipulating and accessing strings, Python includes several built in functions and methods. You can find these functions in a class named String. In this article, we are going to focus on how to invert the case for all letters in a string in Python. Using the ... Read More
The array is a data structure that is available in C++ and is used to hold a sequential collection of elements of the same type. An array has a size that is fixed, but can be expanded or shrank if needed. It is important to think of an array as a collection of variables of the same type even though it is used to store a collection of data. Sets, or in this case unordered sets are a container that stores elements of a particular datatype in any order. A hash table is used to implement an unordered_set where keys ... Read More
Primitive datatypes in C++ are datatypes that are predefined in the language itself; like int, float, double, etc. Objects are instances of a class, and C++ being an object-oriented language, conversion between primitive data types and objects is necessary. A class serves as a data type's architectural plan. Although this doesn't describe any data specifically, it does specify what the class name signifies, i.e., what an object of the class will look like and what operations may be carried out on it. Conversion between a primitive data type to an object is not defined explicitly in the C++ language compilers, ... Read More
In C++, variables of the int type can only hold positive or negative integer values; they cannot hold fractional values. There are float and double values available for this purpose. In order to store fractional numbers with up to seven digits after the decimal point, double datatype was created. Integer to double datatype conversion can either be done automatically by the compiler (known as "implicit" conversion) or explicitly requested by the programmer to the compiler (known as "explicit" conversion). In the sections that follow, we go over the various conversion methods. Implicit Conversion The compiler does implicit type conversions automatically. ... Read More
Int type variables in C++ are used to contain positive or negarive integer values, but this type is unable to contain fractional values. For that, there are float and double values. Double datatype is specifically designed to hold fractional values upto seven digits after the decimal point. Conversion between integer and double variables can be automatically handled by the compiler, known as ‘implicit’ conversion or can be explicitly triggered by the programmer to the compiler. We discuss the different ways of conversion in the following sections. Implicit Conversion Implicit type conversions are done automatically by the compiler. For this to ... Read More
Integer type variables in C++ are able to store positive or negative integer values upto a predefined range. String variables can store a sequence of alphabets, numerals, and special characters. There are many use cases where the conversion from int to string is needed. We discuss 3 different methods to convert an integer variable into a string. If we discuss the algorithm, it is pretty straightforward. We take input in an integer variable and then convert it into a string variable. Using to_string function The easiest way in C++ to convert an integer value to a string is using the ... Read More
In C++, Boolean variables consists of binary data true or false and string variables are a sequence of alphabets, numerals, and special characters. Conversion between string to Boolean isn’t possible natively by the compiler, but there are several ways to perform this conversion. We explore the various ways using which we can convert a string value into a Boolean. If we think about the algorithm , it is quite easy. We take a string value and convert into Boolean using various ways. Algorithm (generalized) Take input in a string variable. Convert the string value (true or false) into a ... Read More
Boolean variables in C++ can contain only two distinct values, ‘true’ or ‘false’. If we translate these values to string, ‘true’ will be mapped to ‘1’ and ‘false’ will be mapped to ‘0’. Boolean values are mainly used to check if a condition in a program has been met or not. There aren’t direct conversions from Boolean to string like we have seen in conversions from int to long and float to double. But there are needs to translate a Boolean value to string, and we explore different ways to convert a binary Boolean value to a string value. Using ... Read More
C++ is a statically typed language, and because of that all of its variables require the datatype to be declared beforehand. The datatypes are used to represent which type of value is contained inside a variable. In C++, the variables to contain numerical values are int, long, float, and double. int and long are used to represent integer values, whereas float and double are used to represent fractional values. Both int and long contains integer values with one difference which is, int is of size 4 bytes and long is of size 8 bytes. Conversion of int to long can ... Read More