StringBuilder.Equals Method (StringBuilder)
.NET Framework 3.0
Returns a value indicating whether this instance is equal to a specified object.
Namespace: System.Text
Assembly: mscorlib (in mscorlib.dll)
Assembly: mscorlib (in mscorlib.dll)
public boolean Equals ( StringBuilder sb )
public function Equals ( sb : StringBuilder ) : boolean
Not applicable.
Parameters
- sb
An object to compare with this instance or a null reference (Nothing in Visual Basic).
Return Value
true if this instance and sb have equal string, Capacity, and MaxCapacity values; otherwise, false.The following code uses the Equals method to check whether two StringBuilder objects are equal. The method is called repeatedly after small changes are made to each object, and the results are displayed to the console.
using namespace System; using namespace System::Text; int main() { StringBuilder^ sb1 = gcnew StringBuilder( "abc" ); StringBuilder^ sb2 = gcnew StringBuilder( "abc",16 ); Console::WriteLine(); Console::WriteLine( "a1) sb1->Length = {0}, sb1->Capacity = {1}", sb1->Length, sb1->Capacity ); Console::WriteLine( "a2) sb2->Length = {0}, sb2->Capacity = {1}", sb2->Length, sb2->Capacity ); Console::WriteLine( "a3) sb1 = \"{0}\", sb2 = \"{1}\"", sb1, sb2 ); Console::WriteLine( "a4) sb1 equals sb2: {0}", sb1->Equals( sb2 ) ); Console::WriteLine(); Console::WriteLine( "Ensure sb1 has a capacity of at least 50 characters." ); sb1->EnsureCapacity( 50 ); Console::WriteLine(); Console::WriteLine( "b1) sb1->Length = {0}, sb1->Capacity = {1}", sb1->Length, sb1->Capacity ); Console::WriteLine( "b2) sb2->Length = {0}, sb2->Capacity = {1}", sb2->Length, sb2->Capacity ); Console::WriteLine( "b3) sb1 = \"{0}\", sb2 = \"{1}\"", sb1, sb2 ); Console::WriteLine( "b4) sb1 equals sb2: {0}", sb1->Equals( sb2 ) ); Console::WriteLine(); Console::WriteLine( "Set the length of sb1 to zero." ); Console::WriteLine( "Set the capacity of sb2 to 51 characters." ); sb1->Length = 0; sb2->Capacity = 51; Console::WriteLine(); Console::WriteLine( "c1) sb1->Length = {0}, sb1->Capacity = {1}", sb1->Length, sb1->Capacity ); Console::WriteLine( "c2) sb2->Length = {0}, sb2->Capacity = {1}", sb2->Length, sb2->Capacity ); Console::WriteLine( "c3) sb1 = \"{0}\", sb2 = \"{1}\"", sb1, sb2 ); Console::WriteLine( "c4) sb1 equals sb2: {0}", sb1->Equals( sb2 ) ); } /* This example produces the following results: a1) sb1.Length = 3, sb1.Capacity = 16 a2) sb2.Length = 3, sb2.Capacity = 16 a3) sb1.ToString() = "abc", sb2.ToString() = "abc" a4) sb1 equals sb2: True Ensure sb1 has a capacity of at least 50 characters. b1) sb1.Length = 3, sb1.Capacity = 51 b2) sb2.Length = 3, sb2.Capacity = 16 b3) sb1.ToString() = "abc", sb2.ToString() = "abc" b4) sb1 equals sb2: False Set the length of sb1 to zero. Set the capacity of sb2 to 51 characters. c1) sb1.Length = 0, sb1.Capacity = 51 c2) sb2.Length = 3, sb2.Capacity = 51 c3) sb1.ToString() = "", sb2.ToString() = "abc" c4) sb1 equals sb2: False */
// This example demonstrates StringBuilder.EnsureCapacity
// StringBuilder.Capacity
// StringBuilder.Length
// StringBuilder.Equals
import System.*;
import System.Text.*;
class Sample
{
public static void main(String[] args)
{
StringBuilder sb1 = new StringBuilder("abc");
StringBuilder sb2 = new StringBuilder("abc", 16);
Console.WriteLine();
Console.WriteLine("a1) sb1.get_Length() = {0}, "
+ "sb1.get_Capacity() = {1}",
System.Convert.ToString(sb1.get_Length()),
System.Convert.ToString(sb1.get_Capacity()));
Console.WriteLine("a2) sb2.get_Length() = {0}, "
+ "sb2.get_Capacity() = {1}",
System.Convert.ToString(sb2.get_Length()),
System.Convert.ToString(sb2.get_Capacity()));
Console.WriteLine("a3) sb1.ToString() = \"{0}\", "
+ "sb2.ToString() = \"{1}\"", sb1.ToString(), sb2.ToString());
Console.WriteLine("a4) sb1 equals sb2: {0}",
System.Convert.ToString(sb1.Equals(sb2)));
Console.WriteLine();
Console.WriteLine("Ensure sb1 has a capacity of at least 50 "
+ "characters.");
sb1.EnsureCapacity(50);
Console.WriteLine();
Console.WriteLine("b1) sb1.get_Length() = {0}, "
+ "sb1.get_Capacity() = {1}",
System.Convert.ToString(sb1.get_Length()),
System.Convert.ToString(sb1.get_Capacity()));
Console.WriteLine("b2) sb2.get_Length() = {0}, "
+ "sb2.get_Capacity() = {1}",
System.Convert.ToString(sb2.get_Length()),
System.Convert.ToString(sb2.get_Capacity()));
Console.WriteLine("b3) sb1.ToString() = \"{0}\", "
+ "sb2.ToString() = \"{1}\"", sb1.ToString(), sb2.ToString());
Console.WriteLine("b4) sb1 equals sb2: {0}",
System.Convert.ToString(sb1.Equals(sb2)));
Console.WriteLine();
Console.WriteLine("Set the length of sb1 to zero.");
Console.WriteLine("Set the capacity of sb2 to 51 characters.");
sb1.set_Length(0);
sb2.set_Capacity(51);
Console.WriteLine();
Console.WriteLine("c1) sb1.get_Length() = {0}, "
+ "sb1.get_Capacity() = {1}",
System.Convert.ToString(sb1.get_Length()),
System.Convert.ToString(sb1.get_Capacity()));
Console.WriteLine("c2) sb2.get_Length() = {0}, "
+ "sb2.get_Capacity() = {1}",
System.Convert.ToString(sb2.get_Length()),
System.Convert.ToString(sb2.get_Capacity()));
Console.WriteLine("c3) sb1.ToString() = \"{0}\", "
+ "sb2.ToString() = \"{1}\"", sb1.ToString(), sb2.ToString());
Console.WriteLine("c4) sb1 equals sb2: {0}",
System.Convert.ToString(sb1.Equals(sb2)));
} //main
} //Sample
/*
This example produces the following results:
a1) sb1.get_Length() = 3, sb1.get_Capacity() = 16
a2) sb2.get_Length() = 3, sb2.get_Capacity() = 16
a3) sb1.ToString() = "abc", sb2.ToString() = "abc"
a4) sb1 equals sb2: True
Ensure sb1 has a capacity of at least 50 characters.
b1) sb1.get_Length() = 3, sb1.get_Capacity() = 50
b2) sb2.get_Length() = 3, sb2.get_Capacity() = 16
b3) sb1.ToString() = "abc", sb2.ToString() = "abc"
b4) sb1 equals sb2: False
Set the length of sb1 to zero.
Set the capacity of sb2 to 51 characters.
c1) sb1.get_Length() = 0, sb1.get_Capacity() = 50
c2) sb2.get_Length() = 3, sb2.get_Capacity() = 51
c3) sb1.ToString() = "", sb2.ToString() = "abc"
c4) sb1 equals sb2: False
*/
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
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