C# BitArray dot array usage

In C#, the BitArray class is used to manage a compact array of bit values. The values in the array are Boolean, where true (1) means that this bit is on and false (0) means that this bit is off.

When you need to store bits (the smallest unit of data storage in English name "bit" or bits), but don't know the specific number of bits in advance, you can use dot arrays. When you need to access elements in a point array, you can use an integer index to access the specified element from the point array, with the index starting from zero.

Properties in BitArray class

The following table lists some commonly used properties of the BitArray class:

property	describe
Count	Get the number of elements contained in the dot array
IsReadOnly	Determine whether the dot array is read only
Item	Gets or sets the value of the specified position in the dot array
Length	Get or set the number of elements in the dot array

Methods in BitArray class

The following table lists some commonly used methods of the BitArray class:

Method name	describe
public BitArray And(BitArray value)	Perform bitwise and operations on the elements in the current dot array and the corresponding elements in the specified dot array
public bool Get(int index)	Get the bit value of the specified position in the dot array
public BitArray Not()	Reverse the values of all bits in the current dot array, that is, set true to false and set false to true
public BitArray Or(BitArray value)	Perform bitwise or operations on elements in the current dot array and corresponding elements in the specified dot array
public void Set(int index, bool value)	Set the bits of the specified position in the dot array to the specified value
public void SetAll(bool value)	Set all bits in the dot array to the specified value
public BitArray Xor(BitArray value)	Perform bitwise exclusive OR on the elements in the current point array and the corresponding elements in the specified point array

For a complete introduction to the properties and methods in the BitArray class, you can check it outC# official documentation。

[Example] The following example demonstrates the use of BitArray class properties and methods:

using System;
using ;

namespace 
{
    class Demo
    {
        static void Main(string[] args){
            // Create two dot arrays of size 8            BitArray ba1 = new BitArray(8);
            BitArray ba2 = new BitArray(8);
            byte[] a = { 60 };
            byte[] b = { 13 };
          
            //Storage values 60 and 13 into the dot array            ba1 = new BitArray(a);
            ba2 = new BitArray(b);

            // content of ba1            ("Dot array ba1: 60");
            for (int i = 0; i &lt; ; i++)
            {
                ("{0, -6} ", ba1[i]);
            }
            ();
          
            // content of ba2            ("Dot array ba2: 13");
            for (int i = 0; i &lt; ; i++)
            {
                ("{0, -6} ", ba2[i]);
            }
            ();
          
          
            BitArray ba3 = new BitArray(8);
            ba3 = (ba2);

            // Ba3 content            ("Dot array after bitwise and operation is performed ba3:");
            for (int i = 0; i &lt; ; i++)
            {
                ("{0, -6} ", ba3[i]);
            }
            ();

            ba3 = (ba2);
            // Ba3 content            ("Dot array after bitwise or operation is performed ba3:");
            for (int i = 0; i &lt; ; i++)
            {
                ("{0, -6} ", ba3[i]);
            }
            ();
          
            ();
        }
    }
}

The operation results are as follows:

Dot array ba1: 60
False False True   True   True   True   False False
Dot array ba2: 13
True   False True   True   False False False False
Dot array after bitwise and operation ba3:
False False True   True   False False False False
Dot array after bitwise or operation ba3:
True   False True   True   False False False False

This is the end of this article about the use of C# BitArray dot array. For more related content of C# BitArray dot array, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!