Collections para ordenar chaves e valores
SortedList namespace
System.Collections
Declaration
SortedList = class(System.Object, IDictionary, ICollection,
IEnumerable, ICloneable);
Representa uma coleção de pares de chave-e-valor que são ordenados pelas chaves e são acessível através de chave e através de índice.
program System_Collections_SortedList;
{$APPTYPE CONSOLE}
{$AUTOBOX ON}
uses
System.Collections;
type
SamplesSortedList = class
public
class procedure Main;
private
class procedure PrintKeysAndValues(myList: SortedList);
end;
{ SamplesSortedList }
class procedure SamplesSortedList.Main;
var
mySL: SortedList;
begin
// Creates and initializes a new SortedList
mySL := SortedList.Create;
mySL.Add('First', 'Hello');
mySL.Add('Second', 'World');
mySL.Add('Third', '!');
// Displays the properties
//and values of the SortedList
Console.WriteLine('mySL');
Console.WriteLine(' Count: {0}', mySL.Count);
Console.WriteLine(' Capacity: {0}', mySL.Capacity);
Console.WriteLine(' Keys and Values:');
PrintKeysAndValues(mySL);
end;
class procedure SamplesSortedList.PrintKeysAndValues (
myList: SortedList);
var
idx: Integer;
begin
Console.WriteLine(''#9'-KEY-'#9'-VALUE-');
idx := 0;
while (idx < myList.Count) do
begin
Console.WriteLine(''#9'{0}:'#9'{1}',
myList.GetKey(idx),
myList.GetByIndex(idx));
idx := idx + 1;
end;
Console.WriteLine;
end;
//test program
begin
SamplesSortedList.Main;
end.
Saída
mySL
Count: 3
Capacity: 16
Keys and Values:
-KEY- -VALUE-
First: Hello
Second: World
Third: !
