using System; using System.Net; using System.Text; public class BinaryNetworkByteOrder { public static void Main() { short test1 = 45; int test2 = 314159; long test3 = -123456789033452; byte[] data = new byte[1024]; string output; data = BitConverter.GetBytes(test1); output = BitConverter.ToString(data); Console.WriteLine("test1 = {0}, string = {1}", test1, output); data = BitConverter.GetBytes(test2); output = BitConverter.ToString(data); Console.WriteLine("test2 = {0}, string = {1}", test2, output); data = BitConverter.GetBytes(test3); output = BitConverter.ToString(data); Console.WriteLine("test3 = {0}, string = {1}", test3, output); short test1b = IPAddress.HostToNetworkOrder(test1); data = BitConverter.GetBytes(test1b); output = BitConverter.ToString(data); Console.WriteLine("test1 = {0}, nbo = {1}", test1b, output); int test2b = IPAddress.HostToNetworkOrder(test2); data = BitConverter.GetBytes(test2b); output = BitConverter.ToString(data); Console.WriteLine("test2 = {0}, nbo = {1}", test2b, output); long test3b = IPAddress.HostToNetworkOrder(test3); data = BitConverter.GetBytes(test3b); output = BitConverter.ToString(data); Console.WriteLine("test3 = {0}, nbo = {1}", test3b, output); } }
Software Development
software development notes, main category for Cs, Java, and other programming experiences.
Binary Data Test
using System; using System.Net; using System.Text; public class BinaryDataTest { public static void Main() { int test1 = 45; double test2 = 3.14159; int test3 = -1234567890; bool test4 = false; byte[] data = new byte[1024]; string output; data = BitConverter.GetBytes(test1); output = BitConverter.ToString(data); Console.WriteLine("test1 = {0}, string = {1}", test1, output); data = BitConverter.GetBytes(test2); output = BitConverter.ToString(data); Console.WriteLine("test2 = {0}, string = {1}", test2, output); data = BitConverter.GetBytes(test3); output = BitConverter.ToString(data); Console.WriteLine("test3 = {0}, string = {1}", test3, output); data = BitConverter.GetBytes(test4); output = BitConverter.ToString(data); Console.WriteLine("test4 = {0}, string = {1}", test4, output); } }
Obtaining the Most Significant or Least Significant Bits of a Number
using System; using System.Data; class Class1{ static void Main(string[] args){ int number = 25; short num = 25; Console.WriteLine(GetMSB(number)); Console.WriteLine(GetConvertMSB(number)); Console.WriteLine(GetLSB(number)); Console.WriteLine(GetConvertLSB(number)); Console.WriteLine(GetMSB(num)); Console.WriteLine(GetLSB(num)); } public static int GetMSB(int value) { return (int)(value & 0xFFFF0000); } public static int GetConvertMSB(int value) { return (value & Convert.ToInt32("11111111111111110000000000000000", 2)); } public static int GetLSB(int intValue) { return (intValue & 0x0000FFFF); } public static int GetConvertLSB(int intValue) { return (intValue & Convert.ToInt32("11111111111111110000000000000000", 2)); } public static int GetMSB(short intValue) { return (intValue & 0xFF00); } public static int GetLSB(short intValue) { return (intValue & 0x00FF); } }
Using the Bitwise Complement Operators with Various Data Types
using System; using System.Data; class Class1{ static void Main(string[] args){ uint x = 0x01001001; uint XComp = ~x; Console.WriteLine("~x = " + ~x); sbyte B1 = sbyte.MinValue; sbyte B2 = sbyte.MaxValue; Console.WriteLine("B1|B2 = " + (((byte)B1|(byte)B2))); ushort x2 = 0x00000001; // Problem Console.WriteLine("~x2 = " + ~x2); byte y = 1; // Problem //byte B = ~y; Console.WriteLine("~y = " + ~y); char x3 = (char)1; // Problem Console.WriteLine("~x3 = " + ~x3); sbyte x5 = 1; Console.WriteLine("~x5 = " + ~x5); uint IntResult = (uint)~x; Console.WriteLine("IntResult = " + IntResult); byte ByteResult = (byte)~y; Console.WriteLine("ByteResult = " + ByteResult); } }
.NET Frameworks Overview:Custom Object Formatting
using System; class Employee: IFormattable { public Employee(int id, string firstName, string lastName) { this.id = id; this.firstName = firstName; this.lastName = lastName; } public string ToString (string format, IFormatProvider fp) { if ((format != null) && (format.Equals("F"))) return(String.Format("{0}: {1}, {2}", id, lastName, firstName)); else return(id.ToString(format, fp)); } int id; string firstName; string lastName; } public class CustomObjectFormatting { public static void Main() { Employee fred = new Employee(123, "AAA", "BBB"); Console.WriteLine("No format: {0}", fred); Console.WriteLine("Full format: {0:F}", fred); } }
Overriding the ToString() Method
using System; public class Name { public string firstName; public string lastName; public Name(string firstName, string lastName) { this.firstName = firstName; this.lastName = lastName; } public void Display() { Console.WriteLine("firstName = " + firstName); Console.WriteLine("lastName = " + lastName); } // override the ToString() method public override string ToString() { return firstName + " " + lastName; } } class Test{ public static void Main() { Name myName = new Name("T", "M"); Name myOtherName = new Name("P", "B"); // call the ToString() method for the Name objects Console.WriteLine("myName.ToString() = " + myName.ToString()); Console.WriteLine("myOtherName.ToString() = " + myOtherName.ToString()); } }
Format data in ToString method.
using System;
public class Time1
{
private int hour;
private int minute;
private int second;
public void SetTime( int h, int m, int s )
{
hour = ( ( h >= 0 && h < 24 ) ? h : 0 );
minute = ( ( m >= 0 && m < 60 ) ? m : 0 );
second = ( ( s >= 0 && s < 60 ) ? s : 0 );
}
public string ToUniversalString()
{
return string.Format( "{0:D2}:{1:D2}:{2:D2}", hour, minute, second );
}
public override string ToString()
{
return string.Format( "{0:D2}:{1:D2}:{2:D2} {3}",
( ( hour == 0 || hour == 12 ) ? 12 : hour % 12 ),
minute, second, ( hour < 12 ? "AM" : "PM" ) );
}
}
public class MemberAccessTest
{
public static void Main( string[] args )
{
Time1 time = new Time1();
time.hour = 7; // error: hour has private access in Time1
time.minute = 15; // error: minute has private access in Time1
time.second = 30; // error: second has private access in Time1
}
}
[/csharp]