Bagikan melalui

Decimal.Equals Metode

  • Referensi

Definisi

Ruang nama:
System
Rakitan:
System.Runtime.dll
Rakitan:
mscorlib.dll
Rakitan:
netstandard.dll

Mengembalikan nilai yang menunjukkan apakah dua instans Decimal mewakili nilai yang sama.

Overload

Equals(Decimal, Decimal)

Mengembalikan nilai yang menunjukkan apakah dua instans Decimal tertentu mewakili nilai yang sama.
Equals(Decimal)

Mengembalikan nilai yang menunjukkan apakah instans ini dan objek Decimal tertentu mewakili nilai yang sama.
Equals(Object)

Mengembalikan nilai yang menunjukkan apakah instans ini dan Object tertentu mewakili jenis dan nilai yang sama.

Equals(Decimal, Decimal)

Sumber:
Decimal.cs
Sumber:
Decimal.cs
Sumber:
Decimal.cs

Mengembalikan nilai yang menunjukkan apakah dua instans Decimal tertentu mewakili nilai yang sama.

public:
 static bool Equals(System::Decimal d1, System::Decimal d2);
public static bool Equals (decimal d1, decimal d2);
static member Equals : decimal * decimal -> bool
Public Shared Function Equals (d1 As Decimal, d2 As Decimal) As Boolean

Parameter

d1
Decimal

Nilai pertama yang akan dibandingkan.

d2
Decimal

Nilai kedua untuk dibandingkan.

Mengembalikan

Boolean

true jika d1 dan d2 sama; jika tidak, false.

Contoh

Contoh kode berikut membandingkan beberapa nilai Decimal dengan nilai Decimal referensi menggunakan metode Equals statis.

// Example of the Decimal::Compare and static Decimal::Equals methods.
using namespace System;
const __wchar_t * protoFmt = L"{0,-45}{1}";

// Compare Decimal parameters, and display them with the results.
void CompareDecimals( Decimal Left, Decimal Right, String^ RightText )
{
   String^ dataFmt = gcnew String( protoFmt );
   Console::WriteLine();
   Console::WriteLine( dataFmt, String::Concat( "Right: ", RightText ), Right );
   Console::WriteLine( dataFmt, "Decimal::Equals( Left, Right )", Decimal::Equals( Left, Right ) );
   Console::WriteLine( dataFmt, "Decimal::Compare( Left, Right )", Decimal::Compare( Left, Right ) );
}

int main()
{
   Console::WriteLine( "This example of the Decimal::Equals( Decimal, Decimal "
   ") and \nDecimal::Compare( Decimal, Decimal ) "
   "methods generates the \nfollowing output. It creates "
   "several different Decimal \nvalues and compares them "
   "with the following reference value.\n" );
   
   // Create a reference Decimal value.
   Decimal Left = Decimal(123.456);
   Console::WriteLine( gcnew String( protoFmt ), "Left: Decimal( 123.456 )", Left );
   
   // Create Decimal values to compare with the reference.
   CompareDecimals( Left, Decimal(1.2345600E+2), "Decimal( 1.2345600E+2 )" );
   CompareDecimals( Left, Decimal::Parse( "123.4561" ), "Decimal::Parse( \"123.4561\" )" );
   CompareDecimals( Left, Decimal::Parse( "123.4559" ), "Decimal::Parse( \"123.4559\" )" );
   CompareDecimals( Left, Decimal::Parse( "123.456000" ), "Decimal::Parse( \"123.456000\" )" );
   CompareDecimals( Left, Decimal(123456000,0,0,false,6), "Decimal( 123456000, 0, 0, false, 6 )" );
}

/*
This example of the Decimal::Equals( Decimal, Decimal ) and
Decimal::Compare( Decimal, Decimal ) methods generates the
following output. It creates several different Decimal
values and compares them with the following reference value.

Left: Decimal( 123.456 )                     123.456

Right: Decimal( 1.2345600E+2 )               123.456
Decimal::Equals( Left, Right )               True
Decimal::Compare( Left, Right )              0

Right: Decimal::Parse( "123.4561" )          123.4561
Decimal::Equals( Left, Right )               False
Decimal::Compare( Left, Right )              -1

Right: Decimal::Parse( "123.4559" )          123.4559
Decimal::Equals( Left, Right )               False
Decimal::Compare( Left, Right )              1

Right: Decimal::Parse( "123.456000" )        123.456000
Decimal::Equals( Left, Right )               True
Decimal::Compare( Left, Right )              0

Right: Decimal( 123456000, 0, 0, false, 6 )  123.456000
Decimal::Equals( Left, Right )               True
Decimal::Compare( Left, Right )              0
*/

// Example of the decimal.Compare and static decimal.Equals methods.
using System;

class DecCompareEqualsDemo
{
    const string dataFmt = "{0,-45}{1}";

    // Compare decimal parameters, and display them with the results.
    public static void CompareDecimals( decimal Left, decimal Right,
        string RightText )
    {
        Console.WriteLine( );
        Console.WriteLine( dataFmt, "Right: "+RightText, Right );
        Console.WriteLine( dataFmt, "decimal.Equals( Left, Right )",
            Decimal.Equals( Left, Right ) );
        Console.WriteLine( dataFmt, "decimal.Compare( Left, Right )",
            Decimal.Compare( Left, Right ) );
    }

    public static void Main( )
    {
        Console.WriteLine( "This example of the " +
            "decimal.Equals( decimal, decimal ) and \n" +
            "decimal.Compare( decimal, decimal ) methods " +
            "generates the \nfollowing output. It creates several " +
            "different decimal \nvalues and compares them with " +
            "the following reference value.\n" );

        // Create a reference decimal value.
        decimal Left = new decimal( 123.456 );

        Console.WriteLine( dataFmt, "Left: decimal( 123.456 )",
            Left );

        // Create decimal values to compare with the reference.
        CompareDecimals( Left, new decimal( 1.2345600E+2 ),
            "decimal( 1.2345600E+2 )" );
        CompareDecimals( Left, 123.4561M, "123.4561M" );
        CompareDecimals( Left, 123.4559M, "123.4559M" );
        CompareDecimals( Left, 123.456000M, "123.456000M" );
        CompareDecimals( Left,
            new decimal( 123456000, 0, 0, false, 6 ),
            "decimal( 123456000, 0, 0, false, 6 )" );
    }
}

/*
This example of the decimal.Equals( decimal, decimal ) and
decimal.Compare( decimal, decimal ) methods generates the
following output. It creates several different decimal
values and compares them with the following reference value.

Left: decimal( 123.456 )                     123.456

Right: decimal( 1.2345600E+2 )               123.456
decimal.Equals( Left, Right )                True
decimal.Compare( Left, Right )               0

Right: 123.4561M                             123.4561
decimal.Equals( Left, Right )                False
decimal.Compare( Left, Right )               -1

Right: 123.4559M                             123.4559
decimal.Equals( Left, Right )                False
decimal.Compare( Left, Right )               1

Right: 123.456000M                           123.456000
decimal.Equals( Left, Right )                True
decimal.Compare( Left, Right )               0

Right: decimal( 123456000, 0, 0, false, 6 )  123.456000
decimal.Equals( Left, Right )                True
decimal.Compare( Left, Right )               0
*/

// Example of the decimal.Compare and static decimal.Equals methods.
open System

let print message obj = printfn $"%-45s{message}{obj}"

// Compare decimal parameters, and display them with the results.
let compareDecimals (left: decimal) (right: decimal) (rightText: string) =
    printfn ""
    print $"right: {rightText}" right
    print "decimal.Equals(left, right)  " (Decimal.Equals(left, right))
    print "decimal.Compare(left, right)  " (Decimal.Compare(left, right))

Console.WriteLine( "This example of the " +
    "decimal.Equals(decimal, decimal) and \n" +
    "decimal.Compare(decimal, decimal) methods " +
    "generates the \nfollowing output. It creates several " +
    "different decimal \nvalues and compares them with " +
    "the following reference value.\n" )

// Create a reference decimal value.
let left = decimal 123.456

print "left: decimal( 123.456 )" left

// Create decimal values to compare with the reference.
compareDecimals left (decimal 1.2345600E+2 ) "decimal(1.2345600E+2)"
compareDecimals left 123.4561M "123.4561M"
compareDecimals left 123.4559M "123.4559M"
compareDecimals left 123.456000M "123.456000M"
compareDecimals left (Decimal(123456000, 0, 0, false, 6uy)) "Decimal(123456000, 0, 0, false, 6)"


// This example of the decimal.Equals(decimal, decimal) and
// decimal.Compare(decimal, decimal) methods generates the
// following output. It creates several different decimal
// values and compares them with the following reference value.

// left: decimal(123.456)                       123.456

// right: decimal(1.2345600E+2)                 123.456
// decimal.Equals(left, right)                  True
// decimal.Compare(left, right)                 0

// right: 123.4561M                             123.4561
// decimal.Equals(left, right)                  False
// decimal.Compare(left, right)                 -1

// right: 123.4559M                             123.4559
// decimal.Equals(left, right)                  False
// decimal.Compare(left, right)                 1

// right: 123.456000M                           123.456000
// decimal.Equals(left, right)                  True
// decimal.Compare(left, right)                 0

// right: decimal(123456000, 0, 0, false, 6)    123.456000
// decimal.Equals(left, right)                  True
// decimal.Compare(left, right)                 0

' Example of the Decimal.Compare and static Decimal.Equals methods.
Module DecCompareEqualsDemo
    
    Const dataFmt As String = "{0,-45}{1}"

    ' Compare Decimal parameters, and display them with the results.
    Sub CompareDecimals( Left as Decimal, Right as Decimal, _
        RightText as String )

        Console.WriteLine( )
        Console.WriteLine( dataFmt, "Right: " & RightText, Right )
        Console.WriteLine( dataFmt, "Decimal.Equals( Left, Right )", _
            Decimal.Equals( Left, Right ) )
        Console.WriteLine( dataFmt, _
            "Decimal.Compare( Left, Right )", _
            Decimal.Compare( Left, Right ) )
    End Sub

    Sub Main( )
        Console.WriteLine( _
            "This example of the Decimal.Equals( Decimal, " & _
            "Decimal ) and " & vbCrLf & "Decimal.Compare( " & _
            "Decimal, Decimal ) methods generates the " & vbCrLf & _
            "following output. It creates several different " & _
            "Decimal " & vbCrLf & "values and compares them " & _
            "with the following reference value." & vbCrLf )

        ' Create a reference Decimal value.
        Dim Left as New Decimal( 123.456 )

        Console.WriteLine( dataFmt, "Left: Decimal( 123.456 )", Left )

        ' Create Decimal values to compare with the reference.
        CompareDecimals( Left, New Decimal( 1.2345600E+2 ), _
            "Decimal( 1.2345600E+2 )" )
        CompareDecimals( Left, 123.4561D, "123.4561D" )
        CompareDecimals( Left, 123.4559D, "123.4559D" )
        CompareDecimals( Left, 123.456000D, "123.456000D" )
        CompareDecimals( Left, _
            New Decimal( 123456000, 0, 0, false, 6 ), _
            "Decimal( 123456000, 0, 0, false, 6 )" )
    End Sub 
End Module 

' This example of the Decimal.Equals( Decimal, Decimal ) and
' Decimal.Compare( Decimal, Decimal ) methods generates the
' following output. It creates several different Decimal
' values and compares them with the following reference value.
' 
' Left: Decimal( 123.456 )                     123.456
' 
' Right: Decimal( 1.2345600E+2 )               123.456
' Decimal.Equals( Left, Right )                True
' Decimal.Compare( Left, Right )               0
' 
' Right: 123.4561D                             123.4561
' Decimal.Equals( Left, Right )                False
' Decimal.Compare( Left, Right )               -1
' 
' Right: 123.4559D                             123.4559
' Decimal.Equals( Left, Right )                False
' Decimal.Compare( Left, Right )               1
' 
' Right: 123.456000D                           123.456
' Decimal.Equals( Left, Right )                True
' Decimal.Compare( Left, Right )               0
' 
' Right: Decimal( 123456000, 0, 0, false, 6 )  123.456000
' Decimal.Equals( Left, Right )                True
' Decimal.Compare( Left, Right )               0

Lihat juga

Berlaku untuk

Equals(Decimal)

Sumber:
Decimal.cs
Sumber:
Decimal.cs
Sumber:
Decimal.cs

Mengembalikan nilai yang menunjukkan apakah instans ini dan objek Decimal tertentu mewakili nilai yang sama.

public:
 virtual bool Equals(System::Decimal value);
public bool Equals (decimal value);
override this.Equals : decimal -> bool
Public Function Equals (value As Decimal) As Boolean

Parameter

value
Decimal

Objek untuk dibandingkan dengan instans ini.

Mengembalikan

Boolean

true jika value sama dengan instans ini; jika tidak, false.

Penerapan

Equals(T)

Keterangan

Metode ini mengimplementasikan antarmuka System.IEquatable<T>, dan berkinerja sedikit lebih baik daripada Equals karena tidak harus mengonversi parameter value menjadi objek.

Jika value memiliki lebih sedikit bit (lebih sempit) daripada jenis instans, beberapa bahasa pemrograman melakukan konversi pelebaran implisit yang mengubah nilai parameter menjadi nilai dengan lebih banyak bit.

Misalnya, jenis instans Int32 dan jenis parameternya Byte. Pengkompilasi Microsoft C# menghasilkan instruksi untuk mewakili nilai parameter sebagai objek Int32, lalu menghasilkan metode Int32.CompareTo untuk membandingkan instans dan representasi parameter Int32.

Lihat dokumentasi bahasa pemrograman Anda untuk menentukan apakah pengkompilasinya melakukan konversi pelesiran implisit pada jenis numerik.

Catatan Bagi Pemanggil

Resolusi kelebihan beban kompilator dapat memperhitungkan perbedaan yang jelas dalam perilaku dua metode Equals(Object) kelebihan beban. Jika konversi implisit antara argumen value dan Decimal didefinisikan dan argumen tidak diketik sebagai Object, pengkompilasi dapat melakukan konversi implisit dan memanggil metode Equals(Decimal). Jika tidak, mereka memanggil metode Equals(Object), yang selalu mengembalikan false jika argumen value bukan nilai Decimal. Contoh berikut mengilustrasikan perbedaan perilaku antara dua metode kelebihan beban. Dalam kasus semua jenis integral primitif, termasuk jenis yang ditandatangani dan tidak ditandatangani, perbandingan pertama mengembalikan true karena pengompilasi secara otomatis melakukan konversi yang melebar dan memanggil metode Equals(Decimal), sedangkan perbandingan kedua mengembalikan false karena kompilator memanggil metode Equals(Object).

using System;

public class Example
{
   static decimal value = 112m;

   public static void Main()
   {
      byte byte1= 112;
      Console.WriteLine("value = byte1: {0,17}", value.Equals(byte1));
      TestObjectForEquality(byte1);

      short short1 = 112;
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1));
      TestObjectForEquality(short1);

      int int1 = 112;
      Console.WriteLine("value = int1: {0,19}", value.Equals(int1));
      TestObjectForEquality(int1);

      long long1 = 112;
      Console.WriteLine("value = long1: {0,18}", value.Equals(long1));
      TestObjectForEquality(long1);

      sbyte sbyte1 = 112;
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1));
      TestObjectForEquality(sbyte1);

      ushort ushort1 = 112;
      Console.WriteLine("value = ushort1: {0,17}", value.Equals(ushort1));
      TestObjectForEquality(ushort1);

      uint uint1 = 112;
      Console.WriteLine("value = uint1: {0,19}", value.Equals(uint1));
      TestObjectForEquality(uint1);

      ulong ulong1 = 112;
      Console.WriteLine("value = ulong1: {0,18}", value.Equals(ulong1));
      TestObjectForEquality(ulong1);

      float sng1 = 112;
      Console.WriteLine("value = sng1: {0,21}", value.Equals(sng1));
      TestObjectForEquality(sng1);

      double dbl1 = 112;
      Console.WriteLine("value = dbl1: {0,21}", value.Equals(dbl1));
      TestObjectForEquality(dbl1);
   }

   private static void TestObjectForEquality(Object obj)
   {
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}\n",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj));
   }
}
// The example displays the following output:
//       value = byte1:              True
//       112 (Decimal) = 112 (Byte): False
//
//       value = short1:              True
//       112 (Decimal) = 112 (Int16): False
//
//       value = int1:                True
//       112 (Decimal) = 112 (Int32): False
//
//       value = long1:               True
//       112 (Decimal) = 112 (Int64): False
//
//       value = sbyte1:              True
//       112 (Decimal) = 112 (SByte): False
//
//       value = ushort1:              True
//       112 (Decimal) = 112 (UInt16): False
//
//       value = uint1:                True
//       112 (Decimal) = 112 (UInt32): False
//
//       value = ulong1:               True
//       112 (Decimal) = 112 (UInt64): False
//
//       value = sng1:                 False
//       112 (Decimal) = 112 (Single): False
//
//       value = dbl1:                 False
//       112 (Decimal) = 112 (Double): False

let value = 112m

let testObjectForEquality (obj: obj) =
    printfn $"{value} ({value.GetType().Name}) = {obj} ({obj.GetType().Name}): {value.Equals obj}\n"

let byte1 = 112uy
printfn $"value = byte1: {value.Equals byte1,17}"
testObjectForEquality byte1

let short1 = 112s
printfn $"value = short1: {value.Equals short1,17}"
testObjectForEquality short1

let int1 = 112
printfn $"value = int1: {value.Equals int1,19}"
testObjectForEquality int1

let long1 = 112L
printfn $"value = long1: {value.Equals long1,18}"
testObjectForEquality long1

let sbyte1 = 112y
printfn $"value = sbyte1: {value.Equals sbyte1,17}"
testObjectForEquality sbyte1

let ushort1 = 112us
printfn $"value = ushort1: {value.Equals ushort1,17}"
testObjectForEquality ushort1

let uint1 = 112u
printfn $"value = uint1: {value.Equals uint1,19}"
testObjectForEquality uint1

let ulong1 = 112uL
printfn $"value = ulong1: {value.Equals ulong1,18}"
testObjectForEquality ulong1

let sng1 = 112f
printfn $"value = sng1: {value.Equals sng1,21}"
testObjectForEquality sng1

let dbl1 = 112.
printfn $"value = dbl1: {value.Equals dbl1,21}"
testObjectForEquality dbl1


// The example displays the following output:
//       value = byte1:              True
//       112 (Decimal) = 112 (Byte): False
//
//       value = short1:              True
//       112 (Decimal) = 112 (Int16): False
//
//       value = int1:                True
//       112 (Decimal) = 112 (Int32): False
//
//       value = long1:               True
//       112 (Decimal) = 112 (Int64): False
//
//       value = sbyte1:              True
//       112 (Decimal) = 112 (SByte): False
//
//       value = ushort1:              True
//       112 (Decimal) = 112 (UInt16): False
//
//       value = uint1:                True
//       112 (Decimal) = 112 (UInt32): False
//
//       value = ulong1:               True
//       112 (Decimal) = 112 (UInt64): False
//
//       value = sng1:                 False
//       112 (Decimal) = 112 (Single): False
//
//       value = dbl1:                 False
//       112 (Decimal) = 112 (Double): False

Module Example
   Dim value As Decimal = 112d
   
   Public Sub Main()
      Dim byte1 As Byte = 112
      Console.WriteLine("value = byte1: {0,17}", value.Equals(byte1))
      TestObjectForEquality(byte1)
      
      Dim short1 As Short = 112
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1))
      TestObjectForEquality(short1)

      Dim int1 As Integer = 112
      Console.WriteLine("value = int1: {0,19}", value.Equals(int1))
      TestObjectForEquality(int1)

      Dim long1 As Long = 112
      Console.WriteLine("value = long1: {0,18}", value.Equals(long1))
      TestObjectForEquality(long1)

      Dim sbyte1 As SByte = 112
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1))
      TestObjectForEquality(sbyte1)
      
      Dim ushort1 As UShort = 112
      Console.WriteLine("value = ushort1: {0,17}", value.Equals(ushort1))
      TestObjectForEquality(ushort1)

      Dim uint1 As UInteger = 112
      Console.WriteLine("value = uint1: {0,19}", value.Equals(uint1))
      TestObjectForEquality(uint1)

      Dim ulong1 As ULong = 112
      Console.WriteLine("value = ulong1: {0,18}", value.Equals(ulong1))
      TestObjectForEquality(ulong1)

      Dim sng1 As Single = 112
      Console.WriteLine("value = sng1: {0,21}", value.Equals(sng1))
      TestObjectForEquality(sng1)

      Dim dbl1 As Double = 112
      Console.WriteLine("value = dbl1: {0,21}", value.Equals(dbl1))
      TestObjectForEquality(dbl1)
   End Sub
   
   Private Sub TestObjectForEquality(obj As Object)
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj))
      Console.WriteLine()
   End Sub
End Module
' The example displays the following output:
'       value = byte1:              True
'       112 (Decimal) = 112 (Byte): False
'
'       value = short1:              True
'       112 (Decimal) = 112 (Int16): False
'
'       value = int1:                True
'       112 (Decimal) = 112 (Int32): False
'
'       value = long1:               True
'       112 (Decimal) = 112 (Int64): False
'
'       value = sbyte1:              True
'       112 (Decimal) = 112 (SByte): False
'
'       value = ushort1:              True
'       112 (Decimal) = 112 (UInt16): False
'
'       value = uint1:                True
'       112 (Decimal) = 112 (UInt32): False
'
'       value = ulong1:               True
'       112 (Decimal) = 112 (UInt64): False
'
'       value = sng1:                 False
'       112 (Decimal) = 112 (Single): False
'
'       value = dbl1:                 False
'       112 (Decimal) = 112 (Double): False

Lihat juga

Berlaku untuk

Equals(Object)

Sumber:
Decimal.cs
Sumber:
Decimal.cs
Sumber:
Decimal.cs

Mengembalikan nilai yang menunjukkan apakah instans ini dan Object tertentu mewakili jenis dan nilai yang sama.

public:
 override bool Equals(System::Object ^ value);
public override bool Equals (object value);
public override bool Equals (object? value);
override this.Equals : obj -> bool
Public Overrides Function Equals (value As Object) As Boolean

Parameter

value
Object

Objek untuk dibandingkan dengan instans ini.

Mengembalikan

Boolean

true jika value adalah Decimal dan sama dengan instans ini; jika tidak, false.

Contoh

Contoh kode berikut membandingkan beberapa Decimal dan objek lain dengan nilai Decimal referensi menggunakan metode Equals.

// Example of the Decimal::CompareTo and Decimal::Equals instance 
// methods.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Compare the Decimal to the Object parameters, 
// and display the Object parameters with the results.
void CompDecimalToObject( Decimal Left, Object^ Right, String^ RightText )
{
   Console::WriteLine( "{0,-46}{1}", String::Concat( "Object: ", RightText ), Right );
   Console::WriteLine( "{0,-46}{1}", "Left.Equals( Object )", Left.Equals( Right ) );
   Console::Write( "{0,-46}", "Left.CompareTo( Object )" );
   try
   {
      
      // Catch the exception if CompareTo( ) throws one.
      Console::WriteLine( "{0}\n", Left.CompareTo( Right ) );
   }
   catch ( Exception^ ex ) 
   {
      Console::WriteLine( "{0}\n", GetExceptionType( ex ) );
   }

}

int main()
{
   Console::WriteLine( "This example of the Decimal::Equals( Object* ) and \n"
   "Decimal::CompareTo( Object* ) methods generates the \n"
   "following output. It creates several different "
   "Decimal \nvalues and compares them with the following "
   "reference value.\n" );
   
   // Create a reference Decimal value.
   Decimal Left = Decimal(987.654);
   Console::WriteLine( "{0,-46}{1}\n", "Left: Decimal( 987.654 )", Left );
   
   // Create objects to compare with the reference.
   CompDecimalToObject( Left, Decimal(9.8765400E+2), "Decimal( 9.8765400E+2 )" );
   CompDecimalToObject( Left, Decimal::Parse( "987.6541" ), "Decimal::Parse( \"987.6541\" )" );
   CompDecimalToObject( Left, Decimal::Parse( "987.6539" ), "Decimal::Parse( \"987.6539\" )" );
   CompDecimalToObject( Left, Decimal(987654000,0,0,false,6), "Decimal( 987654000, 0, 0, false, 6 )" );
   CompDecimalToObject( Left, 9.8765400E+2, "Double 9.8765400E+2" );
   CompDecimalToObject( Left, "987.654", "String \"987.654\"" );
}

/*
This example of the Decimal::Equals( Object* ) and
Decimal::CompareTo( Object* ) methods generates the
following output. It creates several different Decimal
values and compares them with the following reference value.

Left: Decimal( 987.654 )                      987.654

Object: Decimal( 9.8765400E+2 )               987.654
Left.Equals( Object )                         True
Left.CompareTo( Object )                      0

Object: Decimal::Parse( "987.6541" )          987.6541
Left.Equals( Object )                         False
Left.CompareTo( Object )                      -1

Object: Decimal::Parse( "987.6539" )          987.6539
Left.Equals( Object )                         False
Left.CompareTo( Object )                      1

Object: Decimal( 987654000, 0, 0, false, 6 )  987.654000
Left.Equals( Object )                         True
Left.CompareTo( Object )                      0

Object: Double 9.8765400E+2                   987.654
Left.Equals( Object )                         False
Left.CompareTo( Object )                      ArgumentException

Object: String "987.654"                      987.654
Left.Equals( Object )                         False
Left.CompareTo( Object )                      ArgumentException
*/

// Example of the decimal.CompareTo and decimal.Equals instance
// methods.
using System;

class DecCompToEqualsObjDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring(
            exceptionType.LastIndexOf( '.' ) + 1 );
    }

    // Compare the decimal to the object parameters,
    // and display the object parameters with the results.
    public static void CompDecimalToObject( decimal Left,
        object Right, string RightText )
    {

        Console.WriteLine( "{0,-46}{1}", "object: "+RightText,
            Right );
        Console.WriteLine( "{0,-46}{1}", "Left.Equals( object )",
            Left.Equals( Right ) );
        Console.Write( "{0,-46}", "Left.CompareTo( object )" );

        try
        {
            // Catch the exception if CompareTo( ) throws one.
            Console.WriteLine( "{0}\n", Left.CompareTo( Right ) );
        }
        catch( Exception ex )
        {
            Console.WriteLine( "{0}\n", GetExceptionType( ex ) );
        }
    }

    public static void Main( )
    {
        Console.WriteLine(
            "This example of the decimal.Equals( object ) and \n" +
            "decimal.CompareTo( object ) methods generates the \n" +
            "following output. It creates several different " +
            "decimal \nvalues and compares them with the following " +
            "reference value.\n" );

        // Create a reference decimal value.
        decimal Left = new decimal( 987.654 );

        Console.WriteLine( "{0,-46}{1}\n",
            "Left: decimal( 987.654 )", Left );

        // Create objects to compare with the reference.
        CompDecimalToObject( Left, new decimal( 9.8765400E+2 ),
            "decimal( 9.8765400E+2 )" );
        CompDecimalToObject( Left, 987.6541M, "987.6541D" );
        CompDecimalToObject( Left, 987.6539M, "987.6539D" );
        CompDecimalToObject( Left,
            new decimal( 987654000, 0, 0, false, 6 ),
            "decimal( 987654000, 0, 0, false, 6 )" );
        CompDecimalToObject( Left, 9.8765400E+2,
            "Double 9.8765400E+2" );
        CompDecimalToObject( Left, "987.654", "String \"987.654\"" );
    }
}

/*
This example of the decimal.Equals( object ) and
decimal.CompareTo( object ) methods generates the
following output. It creates several different decimal
values and compares them with the following reference value.

Left: decimal( 987.654 )                      987.654

object: decimal( 9.8765400E+2 )               987.654
Left.Equals( object )                         True
Left.CompareTo( object )                      0

object: 987.6541D                             987.6541
Left.Equals( object )                         False
Left.CompareTo( object )                      -1

object: 987.6539D                             987.6539
Left.Equals( object )                         False
Left.CompareTo( object )                      1

object: decimal( 987654000, 0, 0, false, 6 )  987.654000
Left.Equals( object )                         True
Left.CompareTo( object )                      0

object: Double 9.8765400E+2                   987.654
Left.Equals( object )                         False
Left.CompareTo( object )                      ArgumentException

object: String "987.654"                      987.654
Left.Equals( object )                         False
Left.CompareTo( object )                      ArgumentException
*/

// Example of the decimal.CompareTo and decimal.Equals instance
// methods.
open System

// Get the exception type name remove the namespace prefix.
let getExceptionType (ex: exn) =
    let exceptionType = ex.GetType() |> string
    exceptionType.Substring(exceptionType.LastIndexOf '.'  + 1)

// Compare the decimal to the object parameters,
// and display the object parameters with the results.
let compDecimalToObject (left: decimal) (right: obj) (rightText: string) =
    printfn $"object: %-38s{rightText}{right}"
    printfn $"""%-46s{"left.Equals(object)"}{left.Equals right}"""       
    printf $"""%-46s{"left.CompareTo(object)"}"""

    try
        // Catch the exception if CompareTo( ) throws one.
        printfn $"{left.CompareTo right}\n"
    with ex ->
        printfn $"{getExceptionType ex}\n"

Console.WriteLine(
    "This example of the decimal.Equals( object ) and \n" +
    "decimal.CompareTo( object ) methods generates the \n" +
    "following output. It creates several different " +
    "decimal \nvalues and compares them with the following " +
    "reference value.\n" )

// Create a reference decimal value.
let left = decimal 987.654

printfn $"""{"Left: decimal(987.654)",-46}{left}\n"""

// Create objects to compare with the reference.
compDecimalToObject left (decimal 9.8765400E+2 ) "decimal(9.8765400E+2)"
compDecimalToObject left 987.6541M "987.6541D"
compDecimalToObject left 987.6539M "987.6539D"
compDecimalToObject left (Decimal(987654000, 0, 0, false, 6uy)) "Decimal(987654000, 0, 0, false, 6)"
compDecimalToObject left 9.8765400E+2 "Double 9.8765400E+2"
compDecimalToObject left "987.654" "String \"987.654\""


// This example of the Decimal.Equals(object) and
// Decimal.CompareTo(object) methods generates the
// following output. It creates several different decimal
// values and compares them with the following reference value.
// Left: decimal(987.654)                        987.654
//
// object: decimal(9.8765400E+2)                 987.654
// left.Equals(object)                           True
// left.CompareTo(object)                        0
//
// object: 987.6541D                             987.6541
// left.Equals(object)                           False
// left.CompareTo(object)                        -1
//
// object: 987.6539D                             987.6539
// left.Equals(object)                           False
// left.CompareTo(object)                        1
//
// object: Decimal(987654000, 0, 0, false, 6)    987.654000
// left.Equals(object)                           True
// left.CompareTo(object)                        0
//
// object: Double 9.8765400E+2                   987.654
// left.Equals(object)                           False
// left.CompareTo(object)                        ArgumentException
//
// object: String "987.654"                      987.654
// left.Equals(object)                           False
// left.CompareTo(object)                        ArgumentException

' Example of the Decimal.CompareTo and Decimal.Equals instance methods.
Module DecCompToEqualsObjDemo
    
    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception ) As String

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function

    ' Compare the Decimal to the Object parameters, 
    ' and display the Object parameters with the results.
    Sub CompDecimalToObject( Left as Decimal, Right as Object, _
        RightText as String )

        Console.WriteLine( "{0,-46}{1}", "Object: " & RightText, _
            Right )
        Console.WriteLine( "{0,-46}{1}", "Left.Equals( Object )", _
            Left.Equals( Right ) )
        Console.Write( "{0,-46}", "Left.CompareTo( Object )" )

        ' Catch the exception if CompareTo( ) throws one.
        Try
            Console.WriteLine( "{0}" & vbCrLf, _
                Left.CompareTo( Right ) )
        Catch ex As Exception
            Console.WriteLine( "{0}" & vbCrLf, _
                GetExceptionType( ex ) )
        End Try
    End Sub

    Sub Main( )
        Console.WriteLine( _
            "This example of the Decimal.Equals( Object ) " & _
            "and " & vbCrLf & "Decimal.CompareTo( Object ) " & _
            "methods generates the " & vbCrLf & _
            "following output. It creates several different " & _
            "Decimal " & vbCrLf & "values and compares them " & _
            "with the following reference value." & vbCrLf )

        ' Create a reference Decimal value.
        Dim Left as New Decimal( 987.654 )

        Console.WriteLine( "{0,-46}{1}" & vbCrLf, _
            "Left: Decimal( 987.654 )", Left )

        ' Create objects to compare with the reference.
        CompDecimalToObject( Left, New Decimal( 9.8765400E+2 ), _
            "Decimal( 9.8765400E+2 )" )
        CompDecimalToObject( Left, 987.6541D, "987.6541D" )
        CompDecimalToObject( Left, 987.6539D, "987.6539D" )
        CompDecimalToObject( Left, _
            New Decimal( 987654000, 0, 0, false, 6 ), _
            "Decimal( 987654000, 0, 0, false, 6 )" )
        CompDecimalToObject( Left, 9.8765400E+2, _
            "Double 9.8765400E+2" )
        CompDecimalToObject( Left, "987.654", _
            "String ""987.654""" )
    End Sub
End Module 

' This example of the Decimal.Equals( Object ) and
' Decimal.CompareTo( Object ) methods generates the
' following output. It creates several different Decimal
' values and compares them with the following reference value.
' 
' Left: Decimal( 987.654 )                      987.654
' 
' Object: Decimal( 9.8765400E+2 )               987.654
' Left.Equals( Object )                         True
' Left.CompareTo( Object )                      0
' 
' Object: 987.6541D                             987.6541
' Left.Equals( Object )                         False
' Left.CompareTo( Object )                      -1
' 
' Object: 987.6539D                             987.6539
' Left.Equals( Object )                         False
' Left.CompareTo( Object )                      1
' 
' Object: Decimal( 987654000, 0, 0, false, 6 )  987.654000
' Left.Equals( Object )                         True
' Left.CompareTo( Object )                      0
' 
' Object: Double 9.8765400E+2                   987.654
' Left.Equals( Object )                         False
' Left.CompareTo( Object )                      ArgumentException
' 
' Object: String "987.654"                      987.654
' Left.Equals( Object )                         False
' Left.CompareTo( Object )                      ArgumentException

Catatan Bagi Pemanggil

Resolusi kelebihan beban kompilator dapat memperhitungkan perbedaan yang jelas dalam perilaku dua metode Equals(Object) kelebihan beban. Jika konversi implisit antara argumen value dan Decimal didefinisikan dan argumen tidak diketik sebagai Object, pengkompilasi dapat melakukan konversi implisit dan memanggil metode Equals(Decimal). Jika tidak, mereka memanggil metode Equals(Object), yang selalu mengembalikan false jika argumen value bukan nilai Decimal. Contoh berikut mengilustrasikan perbedaan perilaku antara dua metode kelebihan beban. Dalam kasus semua jenis integral primitif, termasuk jenis yang ditandatangani dan tidak ditandatangani, perbandingan pertama mengembalikan true karena pengompilasi secara otomatis melakukan konversi yang melebar dan memanggil metode Equals(Decimal), sedangkan perbandingan kedua mengembalikan false karena kompilator memanggil metode Equals(Object).

using System;

public class Example
{
   static decimal value = 112m;

   public static void Main()
   {
      byte byte1= 112;
      Console.WriteLine("value = byte1: {0,17}", value.Equals(byte1));
      TestObjectForEquality(byte1);

      short short1 = 112;
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1));
      TestObjectForEquality(short1);

      int int1 = 112;
      Console.WriteLine("value = int1: {0,19}", value.Equals(int1));
      TestObjectForEquality(int1);

      long long1 = 112;
      Console.WriteLine("value = long1: {0,18}", value.Equals(long1));
      TestObjectForEquality(long1);

      sbyte sbyte1 = 112;
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1));
      TestObjectForEquality(sbyte1);

      ushort ushort1 = 112;
      Console.WriteLine("value = ushort1: {0,17}", value.Equals(ushort1));
      TestObjectForEquality(ushort1);

      uint uint1 = 112;
      Console.WriteLine("value = uint1: {0,19}", value.Equals(uint1));
      TestObjectForEquality(uint1);

      ulong ulong1 = 112;
      Console.WriteLine("value = ulong1: {0,18}", value.Equals(ulong1));
      TestObjectForEquality(ulong1);

      float sng1 = 112;
      Console.WriteLine("value = sng1: {0,21}", value.Equals(sng1));
      TestObjectForEquality(sng1);

      double dbl1 = 112;
      Console.WriteLine("value = dbl1: {0,21}", value.Equals(dbl1));
      TestObjectForEquality(dbl1);
   }

   private static void TestObjectForEquality(Object obj)
   {
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}\n",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj));
   }
}
// The example displays the following output:
//       value = byte1:              True
//       112 (Decimal) = 112 (Byte): False
//
//       value = short1:              True
//       112 (Decimal) = 112 (Int16): False
//
//       value = int1:                True
//       112 (Decimal) = 112 (Int32): False
//
//       value = long1:               True
//       112 (Decimal) = 112 (Int64): False
//
//       value = sbyte1:              True
//       112 (Decimal) = 112 (SByte): False
//
//       value = ushort1:              True
//       112 (Decimal) = 112 (UInt16): False
//
//       value = uint1:                True
//       112 (Decimal) = 112 (UInt32): False
//
//       value = ulong1:               True
//       112 (Decimal) = 112 (UInt64): False
//
//       value = sng1:                 False
//       112 (Decimal) = 112 (Single): False
//
//       value = dbl1:                 False
//       112 (Decimal) = 112 (Double): False

let value = 112m

let testObjectForEquality (obj: obj) =
    printfn $"{value} ({value.GetType().Name}) = {obj} ({obj.GetType().Name}): {value.Equals obj}\n"

let byte1 = 112uy
printfn $"value = byte1: {value.Equals byte1,17}"
testObjectForEquality byte1

let short1 = 112s
printfn $"value = short1: {value.Equals short1,17}"
testObjectForEquality short1

let int1 = 112
printfn $"value = int1: {value.Equals int1,19}"
testObjectForEquality int1

let long1 = 112L
printfn $"value = long1: {value.Equals long1,18}"
testObjectForEquality long1

let sbyte1 = 112y
printfn $"value = sbyte1: {value.Equals sbyte1,17}"
testObjectForEquality sbyte1

let ushort1 = 112us
printfn $"value = ushort1: {value.Equals ushort1,17}"
testObjectForEquality ushort1

let uint1 = 112u
printfn $"value = uint1: {value.Equals uint1,19}"
testObjectForEquality uint1

let ulong1 = 112uL
printfn $"value = ulong1: {value.Equals ulong1,18}"
testObjectForEquality ulong1

let sng1 = 112f
printfn $"value = sng1: {value.Equals sng1,21}"
testObjectForEquality sng1

let dbl1 = 112.
printfn $"value = dbl1: {value.Equals dbl1,21}"
testObjectForEquality dbl1


// The example displays the following output:
//       value = byte1:              True
//       112 (Decimal) = 112 (Byte): False
//
//       value = short1:              True
//       112 (Decimal) = 112 (Int16): False
//
//       value = int1:                True
//       112 (Decimal) = 112 (Int32): False
//
//       value = long1:               True
//       112 (Decimal) = 112 (Int64): False
//
//       value = sbyte1:              True
//       112 (Decimal) = 112 (SByte): False
//
//       value = ushort1:              True
//       112 (Decimal) = 112 (UInt16): False
//
//       value = uint1:                True
//       112 (Decimal) = 112 (UInt32): False
//
//       value = ulong1:               True
//       112 (Decimal) = 112 (UInt64): False
//
//       value = sng1:                 False
//       112 (Decimal) = 112 (Single): False
//
//       value = dbl1:                 False
//       112 (Decimal) = 112 (Double): False

Module Example
   Dim value As Decimal = 112d
   
   Public Sub Main()
      Dim byte1 As Byte = 112
      Console.WriteLine("value = byte1: {0,17}", value.Equals(byte1))
      TestObjectForEquality(byte1)
      
      Dim short1 As Short = 112
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1))
      TestObjectForEquality(short1)

      Dim int1 As Integer = 112
      Console.WriteLine("value = int1: {0,19}", value.Equals(int1))
      TestObjectForEquality(int1)

      Dim long1 As Long = 112
      Console.WriteLine("value = long1: {0,18}", value.Equals(long1))
      TestObjectForEquality(long1)

      Dim sbyte1 As SByte = 112
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1))
      TestObjectForEquality(sbyte1)
      
      Dim ushort1 As UShort = 112
      Console.WriteLine("value = ushort1: {0,17}", value.Equals(ushort1))
      TestObjectForEquality(ushort1)

      Dim uint1 As UInteger = 112
      Console.WriteLine("value = uint1: {0,19}", value.Equals(uint1))
      TestObjectForEquality(uint1)

      Dim ulong1 As ULong = 112
      Console.WriteLine("value = ulong1: {0,18}", value.Equals(ulong1))
      TestObjectForEquality(ulong1)

      Dim sng1 As Single = 112
      Console.WriteLine("value = sng1: {0,21}", value.Equals(sng1))
      TestObjectForEquality(sng1)

      Dim dbl1 As Double = 112
      Console.WriteLine("value = dbl1: {0,21}", value.Equals(dbl1))
      TestObjectForEquality(dbl1)
   End Sub
   
   Private Sub TestObjectForEquality(obj As Object)
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj))
      Console.WriteLine()
   End Sub
End Module
' The example displays the following output:
'       value = byte1:              True
'       112 (Decimal) = 112 (Byte): False
'
'       value = short1:              True
'       112 (Decimal) = 112 (Int16): False
'
'       value = int1:                True
'       112 (Decimal) = 112 (Int32): False
'
'       value = long1:               True
'       112 (Decimal) = 112 (Int64): False
'
'       value = sbyte1:              True
'       112 (Decimal) = 112 (SByte): False
'
'       value = ushort1:              True
'       112 (Decimal) = 112 (UInt16): False
'
'       value = uint1:                True
'       112 (Decimal) = 112 (UInt32): False
'
'       value = ulong1:               True
'       112 (Decimal) = 112 (UInt64): False
'
'       value = sng1:                 False
'       112 (Decimal) = 112 (Single): False
'
'       value = dbl1:                 False
'       112 (Decimal) = 112 (Double): False

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