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2010-05-26T11:39:24Z

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==Demonstrate BitArray==

<source lang="csharp">
// Demonstrate BitArray.

using System;
using System.Collections;

public class BADemo {
public static void showbits(string rem,
BitArray bits) {
Console.WriteLine(rem);
for(int i=0; i < bits.Count; i++)
Console.Write("{0, -6} ", bits[i]);
Console.WriteLine("\n");
}

public static void Main() {
BitArray ba = new BitArray(8);
byte[] b = { 67 };
BitArray ba2 = new BitArray(b);

showbits("Original contents of ba:", ba);

ba = ba.Not();

showbits("Contents of ba after Not:", ba);

showbits("Contents of ba2:", ba2);

BitArray ba3 = ba.Xor(ba2);

showbits("Result of ba XOR ba2:", ba3);
}
}

</source>

==illustrates the use of a BitArray==

<source lang="csharp">
/*
illustrates the use of a BitArray
*/
using System;
using System.Collections;
public class Example11_4
{
public static void Main()
{
// create a BitArray object
BitArray myBitArray = new BitArray(4);
// display the Length property
Console.WriteLine("myBitArray.Length = " +
myBitArray.Length);
// set the four elements of the BitArray
myBitArray[0] = false;
myBitArray[1] = true;
myBitArray[2] = true;
myBitArray[3] = false;
// display the elements of the BitArray
for (int counter = 0; counter < myBitArray.Count; counter++)
{
Console.WriteLine("myBitArray[" + counter + "] = " +
myBitArray[counter]);
}
}
}

</source>

==illustrates the use of BitArray methods==

<source lang="csharp">
/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy
Publisher: Sybex;
ISBN: 0782129110
*/
/*
Example11_5.cs illustrates the use of BitArray methods
*/
using System;
using System.Collections;
public class Example11_5
{
// the DisplayBitArray() method displays the elements in the
// supplied BitArray
public static void DisplayBitArray(
string arrayListName, BitArray myBitArray
)
{
for (int counter = 0; counter < myBitArray.Count; counter++)
{
Console.WriteLine(arrayListName + "[" + counter + "] = " +
myBitArray[counter]);
}
}
public static void Main()
{
// create a BitArray object
BitArray myBitArray = new BitArray(4);
myBitArray[0] = false;
myBitArray[1] = true;
myBitArray[2] = true;
myBitArray[3] = false;
DisplayBitArray("myBitArray", myBitArray);
// create another BitArray object, passing myBitArray to
// the constructor
BitArray anotherBitArray = new BitArray(myBitArray);
DisplayBitArray("anotherBitArray", myBitArray);
// use the Not() method to reverse the elements in myBitArray
Console.WriteLine("Using the Not() method to reverse the element\n" +
" values in myBitArray");
myBitArray.Not();
DisplayBitArray("myBitArray", myBitArray);
// use the Or() method to perform an OR operation on the elements
// in myBitArray and anotherBitArray
Console.WriteLine("Using the Or() method to perform an OR operation on\n" +
" the elements in myBitArray and anotherBitArray");
myBitArray.Or(anotherBitArray);
DisplayBitArray("myBitArray", myBitArray);
}
}

</source>

==Use BitArray collection as Flag==

<source lang="csharp">
using System;
using System.Collections;
public class Starter {
public static void Main() {
Hashtable employees = new Hashtable();
employees.Add("A100", new Employee("Ben", true, false, true));
employees.Add("V100", new Employee("Valerie", false, false, true));
Participation((Employee)employees["A100"]);
Participation((Employee)employees["V100"]);
}
public static void Participation(Employee person) {
Console.WriteLine(person.Name + ":");
if (person.InProfitSharing) {
Console.WriteLine(" Participating in Profit Sharing");
}
if (person.InHealthPlan) {
Console.WriteLine(" Participating in Health Plan");
}
if (person.InCreditUnion) {
Console.WriteLine(" Participating in Credit Union");
}
}
}
public class Employee {
public Employee(string emplName) {
propName = emplName;
eflags.SetAll(true);
}
public Employee(string emplName,
bool profitSharing,
bool healthPlan,
bool creditUnion) {
propName = emplName;
InProfitSharing = profitSharing;
InHealthPlan = healthPlan;
InCreditUnion = creditUnion;
}
private BitArray eflags = new BitArray(3);
public bool InProfitSharing {
set {
eflags.Set(0, value);
}
get {
return eflags.Get(0);
}
}
public bool InHealthPlan {
set {
eflags.Set(1, value);
}
get {
return eflags.Get(1);
}
}
public bool InCreditUnion {
set {
eflags.Set(2, value);
}
get {
return eflags.Get(2);
}
}
private string propName;
public string Name {
get {
return propName;
}
}
}

</source>

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в 15:31, 26 мая 2010

Admin: 1 версия