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Konstruktor Dan Destruktor
Dalam pembuatan objek atau kelas terdapat metode selain procedure
dan function adalah Konstruktor dan Destruktor. Konstruktor
digunakan untuk menginisialisasi objek, dipanggil pada saat objek
diciptakan. Sedangkan destruktor biasanya setelah objek tidak
digunakan lagi. Pembuatan konstruktor dengan menggunakan key
word “Constructor” sedangkan dekonstruktor menggunakan
“Destructor”.
Contoh :
Type
Titik = Objek
x,y,Warna : Integer;
constructorInits
destructordone
procedureSetX(newx:Integer)
function GetX:Integer;
End;
ConstructorTitik.Inits
Begin
X := 0;
Y := 0;
Warna := 1;
End;
Destructor Titik.Done
Begin
X := 0;
Y := 0;
Warna := 1;
End;
ProcedureTitik.SetX(NewX:Integer)
Begin
X := NewX;
End;
Function Titik.GetX:Integer;
Begin
GetX := X;
End;
Var A : Titik;
Begin
A.Inits;
A.SetX(3);
Writeln(A.GetX);
A.Done;
End.

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Konstruktor dan destruktor

  • 1. Konstruktor Dan Destruktor Dalam pembuatan objek atau kelas terdapat metode selain procedure dan function adalah Konstruktor dan Destruktor. Konstruktor digunakan untuk menginisialisasi objek, dipanggil pada saat objek diciptakan. Sedangkan destruktor biasanya setelah objek tidak digunakan lagi. Pembuatan konstruktor dengan menggunakan key word “Constructor” sedangkan dekonstruktor menggunakan “Destructor”. Contoh : Type Titik = Objek x,y,Warna : Integer; constructorInits destructordone procedureSetX(newx:Integer) function GetX:Integer; End; ConstructorTitik.Inits Begin X := 0; Y := 0; Warna := 1; End; Destructor Titik.Done Begin X := 0; Y := 0; Warna := 1; End; ProcedureTitik.SetX(NewX:Integer) Begin X := NewX; End; Function Titik.GetX:Integer; Begin GetX := X; End;
  • 2. Var A : Titik; Begin A.Inits; A.SetX(3); Writeln(A.GetX); A.Done; End.