Loops and arrays

LOOPSLoop statement allow you to execute one or more lines of codes repeatedly, where the operations must be repeated over and over again.

TYPES

DO LOOPDO

WHILE

DO UNTIL

FOR NEXT

WHILE WEND

DO LOOP

DO WHILE

DO UNTIL

FOR…NEXT

• It requires that you know how many times the statement in the loop will be executed.

WHILE…WEND

• It executes a block of statements while a condition is True.

ARRAYS

Array is a set of element of the same datatype represented by a single variable name.

Each element of an array has a unique identifying index number which is used for assessing the elements.

DECLARING AN ARRAY:

SYNTAX: Dim array name (array size) [as datatype]

FLOW CHART OF ARRAY

TYPES OF ARRAY

ONE DIMENSIONAL

• Has only one index or subscript.• It is like a list of items that consists

of one rows and one column of item.

• Syntax: Dim array name (array size) as datatype

MULTI-DIMENSIONAL

• Have higher dimensions.• N-dimensional array can have n

dimensions.• Syntax: Dim array name

(index1, index2 – index n) as datatype

STATIC

• Size always remain the same.

• Its size and dimensions are specified with its declaration.

DYNAMIC

• Size can be changed at run-time.

TYPES Cont..