console.readkey | 易学教程

how To check if CTRL key is pressed in console application c#

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问题 I'm Going to start a console application. The problem is how to determine that the CTRL key is pressed alone without any other key. using System; using System.Text; public class ConsoleKeyExample { public static void Main() { ConsoleKeyInfo input; do { input = Console.ReadKey(true); StringBuilder output = new StringBuilder(String.Format("You pressed {0}",input.Key.ToString())); Console.WriteLine(output.ToString()); if ((input.Modifiers & ConsoleModifiers.Control) != 0) { Console.WriteLine(

how To check if CTRL key is pressed in console application c#

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how To check if CTRL key is pressed in console application c#

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Readkey in Java

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问题 I am new to Java ... is there a similar method to the ReadKey() in C# to avoid that a console application closes? thanks 回答1: One way to do it: BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br.readLine(); there are definitely shorter ones, but I think this one's convenient, because it can easily be extended. 回答2: YOu can also use System.in.read() , if you are ok with just 'Enter' key being your exit key. 来源： https://stackoverflow.com/questions/2533987/readkey-in

Single character console input in java/clojure

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问题 How can I read a single character/key from the console without having to hit Enter? There is an old entry in Sun's bug database claiming that it can't be done in pure java. I've found these approaches JNI JLine [http://jline.sourceforge.net/] Javacurses [http://sourceforge.net/projects/javacurses/] I'd expect to add a single magic-readkey.jar to my classpath, and to write a few lines of code, like (def just-hit (com.acme.MagicConsole/read-char)) . 回答1: Here's an "immediate echo" app using

How do I convert a Console.Readkey to an int c#

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问题 I am trying to convert a user input key to an int, the user will be entering a number between 1 and 6. This is what i have so far sitting inside a method, its not working, yet throwing a format exception was unhandled. var UserInput = Console.ReadKey(); var Bowl = int.Parse(UserInput.ToString()); Console.WriteLine(Bowl); if (Bowl == 5) { Console.WriteLine("OUT!!!!"); } else { GenerateResult(); } } Thanks for your help! 回答1: Simply said you are trying to convert System.ConsoleKeyInfo to an int

How do I convert a Console.Readkey to an int c#

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I am trying to convert a user input key to an int, the user will be entering a number between 1 and 6. This is what i have so far sitting inside a method, its not working, yet throwing a format exception was unhandled. var UserInput = Console.ReadKey(); var Bowl = int.Parse(UserInput.ToString()); Console.WriteLine(Bowl); if (Bowl == 5) { Console.WriteLine("OUT!!!!"); } else { GenerateResult(); } } Thanks for your help! Simply said you are trying to convert System.ConsoleKeyInfo to an int . In your code, when you call UserInput.ToString() what you get is the string that represents the current

Readkey in Java

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I am new to Java ... is there a similar method to the ReadKey() in C# to avoid that a console application closes? thanks One way to do it: BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br.readLine(); there are definitely shorter ones, but I think this one's convenient, because it can easily be extended. YOu can also use System.in.read() , if you are ok with just 'Enter' key being your exit key. 来源： https://stackoverflow.com/questions/2533987/readkey-in-java

Why does Console.ReadKey().Key.ToString get lower and uppercase Letter by pressing once?

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问题 This snipet Outputs two Letters when i press one Key (r). string key = string.Empty; key = Console.ReadKey().Key.ToString(); Console.WriteLine(key); Console.ReadKey(); // Output: rR Why does it output lower 'r' and Upercase 'R' when i only press once the lowercase 'r'? 回答1: The lower case r is what you have written from keyboard. You do not remove it form console by reading it. And the capital letter R is the character representation of the Key from ConsoleKeyInfo structure. If you want to

Why does Console.ReadKey().Key.ToString get lower and uppercase Letter by pressing once?

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This snipet Outputs two Letters when i press one Key (r). string key = string.Empty; key = Console.ReadKey().Key.ToString(); Console.WriteLine(key); Console.ReadKey(); // Output: rR Why does it output lower 'r' and Upercase 'R' when i only press once the lowercase 'r'? The lower case r is what you have written from keyboard. You do not remove it form console by reading it. And the capital letter R is the character representation of the Key from ConsoleKeyInfo structure. If you want to read exactly what was written to console use Console.Read() or Console.ReadLine() . Console.ReadKey returns