pseudocode 1D/2D array, procedures, functions, files, strings, rounding

how would you store a 1d array

DECALRE <identifier> : ARRAY (<lowerbound> TO <upper bound>) OF <dataype>

would you you declare the array as name, there are 10 names

DECLARE names : ARRAY (1 TO 10) OF STRING

how would you assign the name array as Ethan for the first item in the array

name[1] ←- Ethan

define arrays

fixed length structure of elements that have identical data type.

how would you declare a 2d array

DECLARE <identifier> : ARRAY [<l1>:<u1> , <l2>:<u2>] OF <data type>

what does 1d and 2d arrays indicate

1d arrays indicate number of rows

2d arrays indicate number of columns

how would you make the string all in lower case

LCASE (<identifier>)

how would you make the string all in upper case

UCASE (<identifier>)

how would you calculate the length of the string

LENGTH(<identifier>)

how would you write a substring

SUBSTRING (<identifier>, <start>, <length>)

examples SUBSTRING (“Taylor swift”, 1 6) returns Taylor

how would you round a value

ROUND (<identifier>, place)

examples ROUND (5.5, 0) returns 6

define procedure

reusable block of instructions that perform a specific task, it can be called multiple times of the programs

how would you write a procedure

PROCEDURE <identifier>

d <statements>

ENDPROCEDURE

examples

PROCEDURE DisplayMenu ()

d OUTPUT “1.Add item”

d. OUTPUT “2.delete item”

d OUTPUT “3.view items”

d OUTPUT “4.exit”

ENDPROCEDURE

CALL Display menu()

how would you call a procedure

CALL <identifier>

define paramaters

variables that pass on information into a procedure or function

how would you write out a procedure

PROCEDURE <identifier> (<para1>:<datatype>, <para2>:<datatype>)

d <statement>

ENDPROCEDURE

define functions

functions operate similarly to producers but they return a value

how would you write a function

FUNCTION <identifier> RETURNS <datatype>

d <statement>

ENDFUNCTION

how would you write a parameter in a function

FUNCTION <identifier> (<para1>:<datatype> , <para2>:<datatype>) RETURNS <datatype>

d <statement>

ENDFUNCTION

how would you open a file

OPEN <file identifier> FOR <file mode>

what are the types of file modes

READ

WRITE

define READ file mode

data is read from the file

define WRITE file mode

data is written to the file

How would you close a file

CLOSEFILE <file identifier>

how would you make a file to be read

READFILE <file identifier>, <variable>

how would you make a file to be written

WRITEFILE <file identifier>, <variable>

there are two files, FileA.text and FileB.text. How would you copy a line from FileA.text to FileB.text

DECLARE Lineoftext : STRING

OPENFILE “FileA.text” FOR READ

OPENFILE “FileB.text” FOR WRITE

READFILE “FileA.text”, Lineoftext

WRITE FILE “FileB.text”, lineoftext

CLOSEFILE “FileA.text”

CLOSEFILE “File.text”