Starting out with Visual C# (4th Edition)
4th Edition
ISBN: 9780134382609
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 7.9, Problem 7.23CP
Program Plan Intro
List:
- • The list is a class in C# which is similar to an array. But it is automatically adjust the size of the List object to store the items.
- • It is possible to delete the items in list like adding items.
- • An object of List automatically shrinks when items are deleted from it.
- • It helps to store and retrieve the items.
- • The format to declare a list is given below:
List<dataType> nameList= new List <dataType>();
- • Where,
- ○ “List” indicates the class.
- ○ “nameList” indicates an object of List class.
- ○ “dataType” indicates the type of data such “int”, “double”, “string”, and so on.
List initialization:
It is optional to initialize an object of List. Consider the following example,
List<int> numList= new List <int>(){1, 2, 3, 4, 5};
Explanation:
Here, the statement creates an object of List with the name of “numList” which hold the integer values “1, 2, 3, 4, 5”.
Adding the items into List:
The items are added to an existing List by using the Add() method.
The format to add the items to list is given below:
nameList.Add(items);
- • Where,
- ○ “Add” is keyword to add the items into List.
- ○ “nameList” indicates an object of List class.
- ○ “items” indicates the value to add into list and it can be in any data type such as “int”, “double”, “string”, and so on.
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Chapter 7 Solutions
Starting out with Visual C# (4th Edition)
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