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Chapter 14. Statement Reference

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DIMension Memory control statement

DIM

Declares and dimensions arrays; also declares the string length for a string variable.

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Syntax:

Syntax:Syntax:

Syntax:

DIM arraydeclaration[,arraydeclaration...]

Parameter:

Parameter:Parameter:

Parameter:

arraydeclaration

numericvariable (subscript)

DIM n1%(12)

DIM n2(5,6)

stringvariable (subscript)[[stringlength]]

DIM s1$(2)

DIM s2$(2,6)

DIM s3$(4)[16]

DIM s4$(5,3)[30]

subscript

For one-dimensional: integerexpression

For two-dimensional: integerexpression,

integerexpression

Where integerexpression is a numeric expression which returns a value

from 0 to 254.

stringlength

An integer constant that has a value from 1 to 255 which indicates the number

of characters.

Description:

Description:Description:

Description:

DIM declares array variables and dimensions the arrays that a program will utilize.

• A DIM statement can appear anywhere before the first use of the array in a source

program. However, when possible, you should place all your DIM statements together

near the beginning of the program and should not place them in the program execution

loops in order to prevent errors.

• Up to 2-dimensional array variables can be declared.

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