Introduction to Programming
Unit 10 Assignment 1

Short Answer
1.
* Open the file – Opening the file creates a connection between the file and a program; this allows the program to read data from the file. * Process the file – Data is either read from the file or written to the file * Closing the file – The file must be closed when a program is finished using it. Closing the file disconnects the file from the program.
2. The file must be closed so the program will force any unsaved data in the buffer to be written to the file.

4. The file will not be erased, and any new data will be written at the end of the file’s current contents. 5. The program will create a new file.

Algorithm Workbench

1.
Declare OutputFile myFile

Open myFile “my_name.dat”

Write myFile “fatima”

Close myFile

2.
Declare InputFile myFile
Declare String name1

Open myFile “my_name.dat”

Read myFile name1

Close myFile

Display ”Hello! My name is,”

3. Declare OutputFile numberList
Declare Integer counter = 1

Open numberList “number_list.dat”

For counter = 1 to 100
Write numberList, counter
Next counter
End For

Close numberList

4.

Declare InputFile number_list
Declare Integer myNumber
Open number_list ”number_list.dat"

Display "Here are the numbers: "

While NOT eof (number_list)
Read numberList myNumber
Display myNumber
End While

Close myName

Programming Exercise Pg. 410 1. Declare Integer number Declare InputFile numberFile Open numberFile “numbers.dat” Display “Here are the numbers: “ While NOT eof(numberFile) Read numberFile (number) Display number End While Close numberFile 2. Declare String name Declare Integer counter = 0 Declare InputFile nameFile Open nameFile (names.dat”) While NOT eof(nameFile) Read nameFile name Set counter = counter + 1 End While Close nameFile Display “The number of names in the file is “, counter