Pada pertemuan kali ini, materi yang kami ajarkan adalah tentang tipe data pada bahasa pemrograman visual basic. Untuk itu, saya ingin share sedikit pengetahuan saya tentang tipe data yang dikenali oleh visual basic.
Definisi dari tipe data adalah jenis data yang dapat diolah oleh komputer untuk memenuhi kebutuhan data bagi keperluan pembuatan program.
Jenis-jenis tipe data yang dikenali oleh visual basic antara lain :
Visual Basic type | Common language runtime type structure | Nominal storage allocation | Value range |
---|---|---|---|
Boolean | Boolean | Depends on implementing platform | True or False |
Byte | Byte | 1 byte | 0 through 255 (unsigned) |
Char (single character) | Char | 2 bytes | 0 through 65535 (unsigned) |
Date | DateTime | 8 bytes | 0:00:00 (midnight) on January 1, 0001 through 11:59:59 PM on December 31, 9999 |
Decimal | Decimal | 16 bytes | 0 through +/-79,228,162,514,264,337,593,543,950,335 (+/-7.9...E+28) † with no decimal point; 0 through +/-7.9228162514264337593543950335 with 28 places to the right of the decimal; smallest nonzero number is +/-0.0000000000000000000000000001 (+/-1E-28) † |
Double (double-precision floating-point) | Double | 8 bytes | -1.79769313486231570E+308 through -4.94065645841246544E-324 † for negative values; 4.94065645841246544E-324 through 1.79769313486231570E+308 † for positive values |
Integer | Int32 | 4 bytes | -2,147,483,648 through 2,147,483,647 (signed) |
Long (long integer) | Int64 | 8 bytes | -9,223,372,036,854,775,808 through 9,223,372,036,854,775,807 (9.2...E+18 †) (signed) |
Object | Object (class) | 4 bytes on 32-bit platform 8 bytes on 64-bit platform | Any type can be stored in a variable of type Object |
SByte | SByte | 1 byte | -128 through 127 (signed) |
Short (short integer) | Int16 | 2 bytes | -32,768 through 32,767 (signed) |
Single (single-precision floating-point) | Single | 4 bytes | -3.4028235E+38 through -1.401298E-45 † for negative values; 1.401298E-45 through 3.4028235E+38 † for positive values |
String (variable-length) | String (class) | Depends on implementing platform | 0 to approximately 2 billion Unicode characters |
UInteger | UInt32 | 4 bytes | 0 through 4,294,967,295 (unsigned) |
ULong | UInt64 | 8 bytes | 0 through 18,446,744,073,709,551,615 (1.8...E+19 †) (unsigned) |
User-Defined (structure) | (inherits from ValueType) | Depends on implementing platform | Each member of the structure has a range determined by its data type and independent of the ranges of the other members |
UShort | UInt16 | 2 bytes | 0 through 65,535 (unsigned) |
Tabel diatas menunjukkan tipe-tipe data yang dapat digunakan dalam memanipulasi data pada visual basic.
Semoga artikel ini dapat bermanfaat bagi semuanya...
source :
http://msdn.microsoft.com/en-us/library/47zceaw7(VS.80).aspx
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