C# Console.SetOut and Console.SetIn

Use Console.SetOut and SetIn. SetOut changes the target output of a console application.

Console.SetOut. A console program can write its output to a file. With the Console.SetOut method, we specify a StreamWriter as the output object.

Then, when the program executes, all the Console.Write calls will be printed to the file. We can also use Console.SetIn to adjust the input source.

SetOut example. With this program, we create a new StreamWriter in a using-statement. Then we use the SetOut method and pass the StreamWriter instance to it.

And: After this point, all the Console.WriteLine calls are printed to the file C:\out.txt.

Using

Tip: It might be better for this program to omit the using resource acquisition statement.

Instead: The StreamWriter could be disposed of when the program exits automatically. This approach would reduce the code complexity.

C# program that uses Console.SetOut using System; using System.IO; class Program { static void Main() { using (StreamWriter writer = new StreamWriter("C:\\out.txt")) { Console.SetOut(writer); Act(); } } static void Act() { Console.WriteLine("This is Console.WriteLine"); Console.WriteLine("Thanks for playing!"); } } Contents (out.txt): This is Console.WriteLine Thanks for playing!

TextWriter. The Console.SetOut method receives an object of type TextWriter. The StreamWriter can be passed to Console.SetOut and it is implicitly cast to the TextWriter type.

Tip: StreamWriter is more useful for writing text to files. TextWriter is mostly needed for interoperability.

TextWriter StreamWriter

SetIn example. We can also use Console.SetIn to set the input source—we can use to automate calls such as a Console.ReadLine. Streams can be dynamically modified in the .NET Framework.

C# program that uses Console.SetIn using System; using System.IO; class Program { static void Main() { using (StreamReader reader = new StreamReader("C:\\programs\\file.txt")) { Console.SetIn(reader); X(); } } static void X() { string line = Console.ReadLine(); Console.WriteLine("READLINE RETURNED: " + line); } } Contents (file.txt): HELLO WORLD! Output READLINE RETURNED: HELLO WORLD!

Summary. We used the Console.SetOut method for changing the target of the output of a console program. We also used SetIn to change the input source.

Summary, uses. SetOut allows you to save the output of a Console program to a file without modifying the uses of the Console.Write and Console.WriteLine calls.Console

The Dev Codes

.Net

.NET Array Dictionary List String 2D Async DataTable Dates DateTime Enum File For Foreach Format IEnumerable If IndexOf Lambda LINQ Parse Path Process Property Regex Replace Sort Split Static StringBuilder Substring Switch Tuple

Java

Core Array ArrayList HashMap String 2D Cast Character Console Deque Duplicates File For Format HashSet If IndexOf Lambda Math ParseInt Process Random Regex Replace Sort Split StringBuilder Substring Switch Vector While

Related Links

Adjectives Ado Ai Android Angular Antonyms Apache Articles Asp Autocad Automata Aws Azure Basic Binary Bitcoin Blockchain C Cassandra Change Coa Computer Control Cpp Create Creating C-Sharp Cyber Daa Data Dbms Deletion Devops Difference Discrete Es6 Ethical Examples Features Firebase Flutter Fs Git Go Hbase History Hive Hiveql How Html Idioms Insertion Installing Ios Java Joomla Js Kafka Kali Laravel Logical Machine Matlab Matrix Mongodb Mysql One Opencv Oracle Ordering Os Pandas Php Pig Pl Postgresql Powershell Prepositions Program Python React Ruby Scala Selecting Selenium Sentence Seo Sharepoint Software Spellings Spotting Spring Sql Sqlite Sqoop Svn Swift Synonyms Talend Testng Types Uml Unity Vbnet Verbal Webdriver What Wpf

TheDeveloperBlog.com

C# Console.SetOut and Console.SetIn

Related Links:

.Net

Java

Related Links