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    Raptor Flowchart

    Read a File in the RAPTOR Flowchart

    Raptor Flowcharts

    Introduction

    In this post, we will learn how to read a file in the Raptor flowchart. The standard Input flowchart symbol is used to read data from a file. The standard input to the flowchart is to prompt the user and the input is taken from the computer keyboard. We can override this behavior by Redirecting the input from the file.

    Redirect_Input

    To read a file in the flowchart, we have to redirect the input to the file using
    the function:

    Redirect_Input(file)

     

    RAPTOR Flowchart Input File

    After file processing we can turn off the redirection using the statement:

    Redirect_Input(False) or

    Redirect_Input(No)

    Example

    Let’s consider a sample input file that consists of the English alphabets each letter in a separate line. We will read the alphabets input file in the RAPTOR flowchart into an array and display them on to the console. At the last, we will display the count of alphabets present in the file.

    Raptor Flowchart

     

    Input File contents:

    A
    B
    C
    D
    E
    F
    G
    H
    I
    J
    K
    L
    M
    N
    O
    P
    Q
    R
    S
    T
    U
    V
    W
    X
    Y
    Z

    PseudoCode

     Public Sub Main()
    
     Randomize
    
     Dim raptor_prompt_variable_zzyz As String
     Dim file
     Dim count
     Dim ARRAYSIZE
     Dim line
     ReDim names()
    
     file = ""
     ARRAYSIZE = 26
     count = 1
     line = ""
     names(ARRAYSIZE) = ""
     raptor_prompt_variable_zzyz = "Enter the filename"
     file = InputBox(raptor_prompt_variable_zzyz)
     redirect_input(file)
     Do
     raptor_prompt_variable_zzyz = ""
     line = InputBox(raptor_prompt_variable_zzyz)
     Loop Until line = ""
     names(count) = line
     MsgBox names(count)
     count = count + 1
     redirect_input(false)
     MsgBox "Number of names:=" + (count - 1)
     
    End Sub

     

    Flowchart Output

     

    Writing to a file

    https://www.testingdocs.com/writing-to-a-file-with-raptor/

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