Data types
Int :
short, long, int (butun sonlar);
Real number :
float, double (kasr sonlar);
Character :
char (belgilar).
int age=14;
cout << age + 5 * 26 << endl; (144)
age= -15
Declaration
- bu o'zgaruvchilarni e'lon qilish;
int height;
weight double;
float radius;
keywords
- int, double,float ...
- cannot use as identifiers.
Assignment
- bu o'zgaruvchiga qiymat o'zgartirish;
son=25;
Initalization
- o'zgaruvchini e'lon qiish vaqtida birdaniga qiymat berish;
int 6 = 16;
O'zgaruvchi nomi harflar, raqamlar va _ belgisidan iborat bo'lishi kerak.
int a=5;
int b=a;
int c=a+b;
int a;
float b; int a,c;
int c; float b,d;
float d;
Garbage value
- declaration kiritilsayu, o'zgaruvchi miqdori kiritilmasa councilda chiqadigan taxminiy sonlar
int a= 123.45 --> 123
float a= 123 --> 123.00
int vazn = (int)[majburlash] 120.123
int a=10;
int b= a+10;
int c= a+b;int d+ a+b+c;
a=b=c=d=60
cin >>
- o'zgaruvchini o'qiydigan komanda
- char --> Ascii table
char belgi= 'a'
cout << (char) (belgi/3) << endl; [majburlash]
iomanip
- input output manipulation, kutubxona
setw()
- o'zgaruvchi uchun print qlishda bo'sh katakchalar so'raydi
cout << setw(15) << son << endl; [by default right-aligned]
cout << left << setw (15) << son << endl;
```
## `setfill('')`
- `setw()` orqali ajratilgan yacheykalarni belgilar bn to'ldiradi
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