My Problem Haven't been solved !!!

Question

I have a text file with below Format:

John Smith 19 175.7
Jane Smith 18 168.5
.
.
.

that they are first name, last name, age and tall (cm) respectively.

I Created a Class that has 4 fields for those . (string first, string last, int age, float tall)

How Can I Read the file and put them in an instance of my class ?
Please write exact code. I have problem with C# IO :-(
Thanks.

Kirtan Patel · Answer

Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:Table Normal; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibrisans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Times New Roman; mso-bidi-theme-font:minor-bidi;} /*start Reading TextFile */ string [] Lines = File .ReadAllLines( data.txt ); foreach ( string line in Lines) { if (line.Trim() !=  ) { string [] Fields = line.Split( ' ' ); /* Fill it in Person Class */ Person p = new Person (); p.FirstName = Fields[0]; p.LastName = Fields[1]; p.Age = Convert .ToInt32(Fields[2]); p.Height = float .Parse(Fields[3]); } } Persons Class ---------------- Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:Table Normal; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibrisans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Times New Roman; mso-bidi-theme-font:minor-bidi;} class Person { private string _FirstName; private string _LastName; private int _Age; private float _Height; public float Height { get { return _Height; } set { _Height = value ; } } public string FirstName { get { return _FirstName; } set { _FirstName = value ; } } public string LastName { get { return _LastName; } set { _LastName = value ; } } public int Age { get { return _Age; } set { _Age = value ; } } }

Majid Kamali · Answer

Thank You :-)

Kirtan Patel · Answer

size of array depends upon your main memory if its big it can hold more strings if file is too much big you can also use structure like LINKED LIST..to fully utilize the main memory ..to store strings to process

Majid Kamali · Answer

If file was too big (in this example data.txt) does string (in this example lines) have capacity to keep all of data within it?

Kirtan Patel · Answer

A. line.Trim() !=  its used because if any string contain extra spaces around it it will remove extra white space from it. so if string is blank we dont need to process .. B. line.Split(' ') its used to split the like for example if this is fox now if we want word 'this' 'is 'fox' in array thenn we can use split method that will split our sentence in different sections ..and store it part in array it splits it by white space ..so we used Split(' ') 2. Why for converting to int you used Convert.Toint32() and for converting to float you used float.parse() ? What is difference between them ? when we split the string its in string format and we need to store it as Integer Value so we converted String Value to Integer using Convert.ToInt32 method Now convert class have not Convert.ToFloat() method so that we need to convert it using Explicitly ..using type casting to store it in Person.Height variable ...

Majid Kamali · Answer

1. Please Explain these two statements: A. line.Trim() !=  B. line.Split(' ') 2. Why for converting to int you used Convert.Toint32() and for converting to float you used float.parse() ? What is difference between them ? Thank you :-)