Tag: Add
How to add elements at a particular index in LinkedList
In this article we will discuss how to add elements at a particular index or position in a LinkedList in Java. add() member function of LinkedList always appends the element at the end of LinkedList. Now suppose we don’t want to add element at the end of Linked List instead of it we want to add element somewhere …
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How to add elements in a LinkedList in Java
In this article we will discuss how to add elements in LinkedList and then display them. Lets create a LinkedList of String i.e. Advertisements List<String> listOfStr = new LinkedList<>(); To add elements in LinkedList we will use its add() function i.e. boolean add(E e) add() member function of LinkedList always appends the element in the …
How to create and add elements in a HashSet in Java
+In this article we will discuss how to create a HashSet of integers and add elements in it. Creating a HashSet Object for integer // Create a HashSet of int HashSet<Integer> setOfInts = new HashSet<>(); This hashset object can contain only unique integers. Advertisements Adding Element in a HashSet To add an element in a …
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How to add an element in Vector using vector::push_back
In this article we will discuss how to add element in a vector. std::vector provides a member function to push an element at the end i.e. Advertisements void push_back (const value_type& val); It will push the element in the end of list. As, this function adds the element, so it also increases the size of …
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How to Add / Subtract Days, Months or Years from a Date in C++
In this article we will discuss how to add or subtract days, months & Years from a date object. Add / Subtract Days from a Date For example, if current date is 21 March 2016. Then subtracting 100 days from this date will make the date 12 Dec 2015 Advertisements For this we will use …
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Python : How to add an element in list ? | append() vs extend()
In this article we will discuss how to add element in an existing list using different techniques. Adding item in list using list.append() list.append(item) It adds the item at the end of list. Advertisements For example, we have a list of string i.e. # List of string wordList = [‘hi’, ‘hello’, ‘this’, ‘that’, ‘is’, ‘of’] …
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Pandas: Add Column to Dataframe
In this article, we will discuss different ways to how to add a new column to dataframe in pandas i.e. using operator [] or assign() function or insert() function or using a dictionary. We will also discuss adding a new column by populating values from a list, using the same value in all indices, or …
Add Row to Dataframe in Pandas
In this article, we will discuss how to add / append a single or multiple rows in a dataframe using dataframe.append() or loc & iloc. Table of Contents Overview of pandas dataframe append() Examples of adding row to the dataframe Add dictionary as a row to dataframe Add Series as a row in the dataframe …
Python: Add a column to an existing CSV file
In this article we will discuss how to add a column to an existing CSV file using csv.reader and csv.DictWriter classes. A part from appending the columns we will also discuss how to insert columns in between other columns of the existing CSV file. There are no direct functions in a python to add a …
Python: How to add or append values to a set ?
In this article we will discuss ways to add single or multiple elements to a set in python. Add a single element to the set Set in python provides a member function to append a single element to the set i.e. set.add(element) It accepts an element as an argument and if that element is not …