vb.net 2008 barcode generator FEATURES OF A .NET CLASS in C#

Draw PDF 417 in C# FEATURES OF A .NET CLASS

CHAPTER 7 FEATURES OF A .NET CLASS
Making PDF-417 2d Barcode In Visual C#.NET
Using Barcode creator for VS .NET Control to generate, create PDF417 image in .NET framework applications.
www.OnBarcode.com
Recognizing PDF417 In Visual C#.NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
ref class PeriodicTable { private: Hashtable^ table; public: PeriodicTable() { table = gcnew Hashtable(); ElementType element("Hydrogen", "H", 1.0079, 1); // Add to the Hashtable using the key and value. table->Add(element.Name, element); // Add the other elements... } property ElementType default[String^] { ElementType get(String^ key) { return safe_cast<ElementType>( table[key] ); } } }; int main() { PeriodicTable^ table = gcnew PeriodicTable(); // Get the element using the indexed property and print it. Console::WriteLine( table["Hydrogen"] ); } The output of Listing 7-8 is shown here:
QR-Code Generation In Visual C#.NET
Using Barcode encoder for .NET framework Control to generate, create QR Code 2d barcode image in .NET framework applications.
www.OnBarcode.com
2D Barcode Generation In Visual C#
Using Barcode maker for .NET Control to generate, create 2D Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Element Hydrogen Symbol H Atomic Number 1 Atomic Weight 1.0079
UCC - 12 Maker In Visual C#.NET
Using Barcode encoder for .NET Control to generate, create EAN128 image in .NET framework applications.
www.OnBarcode.com
Encoding Code 128 Code Set C In C#.NET
Using Barcode drawer for VS .NET Control to generate, create USS Code 128 image in Visual Studio .NET applications.
www.OnBarcode.com
Now suppose we want to implement a table of the isotopes, as envisioned in 2. Isotopes are different versions of the same element, so there is a many-to-one relationship between isotopes and elements. Isotopes are distinguished by a number, the isotope number, which is equal to the number of protons plus the number of neutrons. The number of protons determines the type of element, and the different isotopes of an element just vary by the number
Draw ECC200 In C#.NET
Using Barcode printer for Visual Studio .NET Control to generate, create DataMatrix image in .NET framework applications.
www.OnBarcode.com
ISBN - 10 Generator In C#
Using Barcode creation for .NET Control to generate, create ISBN image in Visual Studio .NET applications.
www.OnBarcode.com
CHAPTER 7 FEATURES OF A .NET CLASS
Paint PDF417 In None
Using Barcode generation for Software Control to generate, create PDF417 image in Software applications.
www.OnBarcode.com
Generating PDF417 In Java
Using Barcode drawer for Java Control to generate, create PDF-417 2d barcode image in Java applications.
www.OnBarcode.com
of neutrons. In Listing 7-9, a hashtable is used to store the various isotopes. The key is based on the element type and the isotope number, which uniquely identifies the isotope. For example, for carbon-14, the key is C14 . Since you can have more than one index variable, separated by commas, in an indexed property, we could look up an isotope by the name of the element and the isotope number, as the ElementIsotope property in Listing 7-9 shows. The key is computed by appending the element symbol and the isotope number, which are the arguments of the indexed property. Listing 7-9. Using Multiple Indexes // isotope_table.cpp using namespace System; using namespace System::Collections::Generic; value class Isotope { public: property unsigned int IsotopeNumber; property unsigned int AtomicNumber; }; ref class IsotopeTable { private: Dictionary<String^, Isotope>^ isotopeTable; public: IsotopeTable() { isotopeTable = gcnew Dictionary<String^, Isotope>(); // Add the elements and their isotopes... // Additional code for the elements is assumed. for each (ElementType element in PeriodicTable::Elements) { // Add each isotope to the isotopes table. for each (Isotope isotope in element.Isotopes) { isotopeTable->Add(element.Name + isotope.IsotopeNumber, isotope); } } }
QR Code ISO/IEC18004 Creation In VS .NET
Using Barcode creator for ASP.NET Control to generate, create QR Code 2d barcode image in ASP.NET applications.
www.OnBarcode.com
Decode Barcode In Visual Studio .NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
CHAPTER 7 FEATURES OF A .NET CLASS
Create EAN128 In Java
Using Barcode generation for Java Control to generate, create GS1-128 image in Java applications.
www.OnBarcode.com
Painting 2D In Java
Using Barcode encoder for Java Control to generate, create 2D image in Java applications.
www.OnBarcode.com
// Pass in the element symbol and isotope number, e.g., "C" and 14 for // carbon-14. property Isotope ElementIsotope[String^, int ] { Isotope get(String^ key, int isotopeNumber) { key = key + isotopeNumber.ToString(); return isotopeTable[key]; } } }; For many of these examples, we omit the set accessor to make the property read-only. You can do the opposite for a write-only property (see Listing 7-10). You can also use access control to set individual access to the set and get methods. Recalling the Atom class from 2, and the derived class RadioactiveAtom, it makes sense to use the access control specifier protected to limit setting the AtomicNumber property to the class and its derived classes. That way the radioactive atom can change the atomic number to process a decay event, but consumers of the atom class can t otherwise change the atomic number. Listing 7-10. Defining a Write-Only Property ref class Atom { unsigned int atomic_number; public: property unsigned int IsotopeNumber; property unsigned int AtomicNumber { // Anyone can get the atomic number. public: unsigned int get() { return atomic_number; } // Only derived classes (such as RadioactiveAtom) // can change the atomic number. protected: void set(unsigned int n) { atomic_number = n; } } }; ref class RadioactiveAtom : Atom { // other stuff
Barcode Recognizer In Visual Studio .NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Barcode Creation In .NET
Using Barcode creator for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
CHAPTER 7 FEATURES OF A .NET CLASS
Scanning Code128 In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Barcode Generator In Objective-C
Using Barcode creator for iPad Control to generate, create Barcode image in iPad applications.
www.OnBarcode.com
public: void AlphaDecay() { AtomicNumber -= 2; IsotopeNumber -= 4; } }; AlphaDecay is a function representing a decay of the atom, releasing two protons and two neutrons in the form of an alpha particle. This changes the atomic number and isotope number, which are updated. As you recall, the decay events in a radioactive atom were modeled using delegates and events. The delegate or event was used to call the designated decay method. The next section covers delegates and events in more detail.
Code-128 Creation In None
Using Barcode maker for Software Control to generate, create Code 128 Code Set B image in Software applications.
www.OnBarcode.com
Painting ECC200 In Visual Studio .NET
Using Barcode generation for ASP.NET Control to generate, create DataMatrix image in ASP.NET applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.