{"id":2283,"date":"2013-02-08T15:17:03","date_gmt":"2013-02-08T07:17:03","guid":{"rendered":"http:\/\/www.vbtutor.net\/index.php\/"},"modified":"2017-11-10T12:38:21","modified_gmt":"2017-11-10T04:38:21","slug":"visual-basic-2012-lesson-6-managing-data","status":"publish","type":"page","link":"https:\/\/www.vbtutor.net\/index.php\/visual-basic-2012-lesson-6-managing-data\/","title":{"rendered":"Visual Basic 2012 Lesson 6- Managing Data"},"content":{"rendered":"

[Lesson 5] <\/a><< [CONTENTS]<\/a> >> [Lesson 7]<\/a><\/strong><\/h4>\n

Visual Basic programming often involves manipulation of all sorts of data. Among them, some can be calculated while others are in the form of text, date, time and more. Visual Basic 2012 divides data into different types so that it is easier for the programmers to manage them.<\/p>\n

6.1 Visual Basic 2012 Data Types<\/h3>\n

Visual Basic 2012 classifies data into two major data types,\u00a0 the numeric data type and the non-numeric data type.<\/p>\n

6.1.1 Numeric Data Types<\/h4>\n

Numeric data types are types of data that consist of numbers that can be computed mathematically. Some examples of numeric data types are examination marks, height, weight, the price of goods, monthly bills, fees and etc.<\/p>\n

In Visual Basic 2012, numeric data are classified into seven types, depending on the range of values they can store. Calculations that do not require precision can use Integer or the Long integer in the computation. On the other hand, programs that require high precision calculation need to use Single and Double precision data types which also called floating point numbers. In addition, for currency calculation, you can use the currency data types. Lastly, if even more precision is required in performing a calculation, we can use the decimal data types. These data types are summarized in Table 6.1<\/p>\n

Table 6.1<\/h4>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nStorage<\/th>\nRange of Values<\/th>\n<\/tr>\n
Byte<\/td>\n1 byte<\/td>\n0 to 255<\/td>\n<\/tr>\n
Integer<\/td>\n2 bytes<\/td>\n-32,768 to 32,767<\/td>\n<\/tr>\n
Long<\/td>\n4 bytes<\/td>\n-2,147,483,648 to -2,147,483,648 <\/td>\n<\/tr>\n
Single<\/td>\n4 bytes<\/td>\n-3.402823E+38 to -1.401298E-45 for negative values
\n1.401298E-45 to 3.402823E+38 for positive values\n<\/td>\n<\/tr>\n
Double<\/td>\n8 bytes<\/td>\n-1.79769313486232E+308 to -4.94065645841247E-324 for negative values
\n4.94065645841247E-324 to 1.79769313486232E+308 for positive values\n<\/td>\n<\/tr>\n
Variant(numeric)<\/td>\n16 bytes<\/td>\nAny value as large as double<\/td>\n<\/tr>\n
Currency<\/td>\n8 bytes<\/td>\n-922,337,203,685,477.5808 to 922,337,203,685,477.5807<\/td>\n<\/tr>\n
Decimal<\/td>\n12 bytes<\/td>\n+\/-79,228,162,514,264,337,593,543,950,335 if no decimal
\n+-7.9228162514264337593543950335\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n