C# tiplarni o‘zgartirish

C# tiplarni o‘zgartirish (type casting)

Tiplarni o‘zgartirish (type casting) — bir ma’lumot tipidagi qiymatni boshqa tipga o‘zlashtirish.

C# da tiplarni o‘zgartirishning ikki turi mavjud:

• Yashirin o‘zgartirish (implicit casting) (avtomatik) — kichikroq tipni kattaroq o‘lchamli tipga o‘tkazish
  char -> int -> long -> float -> double
  
  
• Oshkor o‘zgartirish (explicit casting) (qo‘lda) — kattaroq tipni kichikroq o‘lchamli tipga o‘tkazish
  double -> float -> long -> int -> char

Yashirin o‘zgartirish (implicit casting)

Yashirin o‘zgartirish kichikroq o‘lchamli tipni kattaroq o‘lchamli tipga uzatishda avtomatik ravishda amalga oshiriladi:

int myInt = 9;
double myDouble = myInt;       // Automatic casting: int to double

Console.WriteLine(myInt);      // Outputs 9
Console.WriteLine(myDouble);   // Outputs 9

Oshkor o‘zgartirish (explicit casting)

Oshkor o‘zgartirish qo‘lda, ya’ni qiymat oldiga qavs ichida tipni yozish orqali bajarilishi kerak:

double myDouble = 9.78;
int myInt = (int) myDouble;    // Manual casting: double to int

Console.WriteLine(myDouble);   // Outputs 9.78
Console.WriteLine(myInt);      // Outputs 9

Tiplarni o‘zgartirish metodlari

Ma’lumot tiplarini Convert.ToBoolean, Convert.ToDouble, Convert.ToString, Convert.ToInt32 (int) va Convert.ToInt64 (long) kabi o‘rnatilgan metodlar yordamida ham oshkor ravishda o‘zgartirish mumkin:

int myInt = 10;
double myDouble = 5.25;
bool myBool = true;

Console.WriteLine(Convert.ToString(myInt));    // convert int to string
Console.WriteLine(Convert.ToDouble(myInt));    // convert int to double
Console.WriteLine(Convert.ToInt32(myDouble));  // convert double to int
Console.WriteLine(Convert.ToString(myBool));   // convert bool to string