Operators

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BASIC Guide

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• The Language of OpenOffice.org Basic

• Overview of a Basic Program
• Working With Variables
• Strings
• Numbers
• Boolean Values
• Date and Time
• Arrays
• Scope and Life Span of Variables
• Constants
• Operators
• Branching
• Loops
• Procedures and Functions
• Error Handling
• Other Instructions

• Runtime Library

• Conversion Functions
• Strings
• Date and Time
• Files and Directories
• Message and Input Boxes
• Other Functions

• Introduction to the API

• Universal Network Objects (UNO)
• Properties and Methods
• Modules, Services and Interfaces
• Tools for Working with UNO
• Overview of Central Interfaces

• Working with Documents

• The StarDesktop
• Styles and Templates

• Text Documents

• The Structure of Text Documents
• Editing Text Documents
• More than Just Text

• Spreadsheet Documents

• The Structure of Spreadsheets
  • Rows and Columns
  • Cells and Ranges
  • Formatting Spreadsheet Documents
• Editing Spreadsheet Documents

• Drawings and Presentations

• The Structure of Drawings
• Editing Drawing Objects
• Presentations

• Charts (Diagrams)

• Using Charts in Spreadsheets
• The Structure of Charts
• Chart Types

• Databases

• SQL: a Query Language
• Types of Database Access
• Data Sources
• Database Access

• Dialogs

• Working With Dialogs
• Properties
• Events
• Dialog Control Elements

• Forms

• Working With Forms
• Control Element Forms
• Database Forms

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OpenOffice.org Basic understands common mathematical, logical, and comparison operators.

Mathematical Operators

Mathematical operators can be applied to all numbers types, whereas the + operator can also be used to concatenate strings.

+	Addition of numbers and date values, concatenation of strings
&	Concatenation of strings
-	Subtraction of numbers and date values
*	Multiplication of numbers
/	Division of numbers
\	Division of numbers with a whole number result (rounded)
^	Raising the power of numbers
MOD	modulo operation (calculation of the remainder of a division)

Although you can use the + operator to concatenate strings, the Basic interpreter can become confused when concatenating a number to a string. The & operator is safer when dealing with strings because it assumes that all arguments should be strings, and converts the arguments to strings if they are not strings.

Logical Operators

Logical operators allow you to do operations on elements according to the rules of Boolean algebra. If the operators are applied to Boolean values, the operation provides the result required directly. If used in conjunction with integer and long integer values, the operation is done at the bit level.

AND	And operator
OR	Or operator
XOR	Exclusive Or operator
NOT	Negation
EQV	Equivalent test (both parts True or False)
IMP	Implication (if the first expression is true, then the second must also be true)

Comparison Operators

Comparison operators can be applied to all elementary variable types (numbers, date details, strings, and Boolean values).

=	Equality of numbers, date values and strings
<>	Inequality of numbers, date values and strings
>	Greater than check for numbers, date values and strings
>=	Greater than or equal to check for numbers, date values and strings
<	Less than check for numbers, date values and strings
<=	Less than or equal to check for numbers, date values and strings

VBA : OpenOffice.org Basic does not support the VBA Like comparison operator.

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