Data Literals - Example

This section provides a tutorial example on how to enter data literals into C# programs. 5 types of data literals used in C#: Boolean, Integer, Real, Character and String.

Now let's apply what we have learned so far, and write the following experimental program with literals.cs as the file name:

// Literals.cs
// Copyright (c) 2015, HerongYang.com, All Rights Reserved.

class Literals {
   public static void Main() {      
      System.Console.WriteLine(
         "Boolean literals: {0} and {1}.", true, false);
      System.Console.WriteLine(
         "Integer literals: {0}, {1}, {2}, {3}.", 0, 555, -777, 911);
      System.Console.WriteLine(
         "Real literals: {0}, {1}, {2}, {3}.", 0.0, 555.0, -777.0,
         3.14159);
      System.Console.WriteLine(
         "Character literals: {0}, {1}, {2}, {3}.", 'a', 'A', '0',
         '9');
      System.Console.WriteLine(
         "Character literals: {0}, {1}, {2}, {3}, {4}.", '\t', '\r', 
         '\n', '\"', '\\');
      System.Console.WriteLine(
         "String literals: {0}, {1}, {2}.", "911", "Hello world!", 
         "Joe said \"Hello\" to me.");
   }
}

After compiling and executing the program, we will get the following output:

Boolean literals: True and False.
Integer literals: 0, 555, -777, 911.
Real literals: 0, 555, -777, 3.14159.
Character literals: a, A, 0, 9.
, aracter literals:     ,
, ", \.
String literals: 911, Hello world!, Joe said "Hello" to me..

There are a couple of interesting things to be noted here:

Last update: 2010.

Table of Contents

 About This Book

 Introduction of C# (C Sharp)

Data Type and Variables

 Data Literals

Data Literals - Example

 Variables and Assignment Statements

 Variables and Assignments - Example

 Arithmetic Operations

 Arithmetic Operations - Example

 Logical Expressions and Conditional Statements

 Arrays and Loop Statements

 Data Type Features

 Floating-Point Data Types

 Passing Parameters to Methods

 Execution Environment Class

 Visual C# 2010 Express Edition

 Class Features

 C# Compiler and Intermediate Language

 Compiling C# Source Code Files

 MSBuild - Microsoft Build Engine

 Memory Usages of Processes

 Multithreading in C#

 Async Feature from C# 5

 System.IO.FileInfo Class

 System.Diagnostics.FileVersionInfo Class

 WPF - Windows Presentation Foundation

 Partial Classes and Partial Methods

 Outdated Tutorials

 References

 PDF Printing Version