Collection Management

Create Empty 2D Array

Activity allows to create an empty two-dimensional array.
Arrays are used to store multiple elements as a single variable. An array is the data structure that stores a fixed number of elements of the same data type. The type of data stored in the array has to be specified beforehand. You cannot change the size or type of an existing array after it has been created. The elements of an array are indexed, starting with index (0)(0) - the first rank denotes the number of row, and the second one defines number of column.

The following figure illustrates the two-dimensional array 3x4 divided into rows and columns.


Dragging the activity to flowchart opens an input window requiring you to select your array’s data type, followed by activity window itself. You can specify the size of the array (give the number of rows and columns) and give a name to the Array there (create a variable, type e.g. String[][] or Int32[][], it must match chosen Element Type).


Array elements can be accessed using an index - simply type array name followed by element's indices in brackets (arr2d(1)(2) addreses to the element of the array "hh" - illustration above).

Parameter NameParameter TypeIn/OutDescription
Alternative Scenario If FailedBooleanInputcheckbox; default is "on"
ArrayLiteralOutputname of the array
ColumnsInt32Inputnumber of columns of the array
Display NameLiteralInputchanges display name of the activity
Element TypeDropdownInputselect element type from the dropdown list
Exclude from Transaction CheckBooleanInputcheckbox; default is "off"
ResultBooleanOutputreturns a Boolean value. True if no error in activity, otherwise will return False
Result CodeInt32OutputResult Code will return 0 if there is no error in activity, otherwise in most cases it will return 1, the extended result code will show only in several chosen activities
RowsInt32Inputnumber of rows of the array

Last edited: 2023, 03 July.