Java Programming, Loose-Leaf Version
9th Edition
ISBN: 9781337685900
Author: FARRELL, Joyce
Publisher: Cengage Learning
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Chapter 13, Problem 8PE
a.
Program Plan Intro
Student progression
Program plan:
- Import necessary packages and create a class “StudentsStanding”,
- Define the method “main()”,
- Create “Scanner” object.
- Get both the file paths.
- Initialize required string and final variables.
- Set the cutoff value for grade point average.
- Execute “try” statement,
- Create output stream object.
- Create object for “BufferedWriter”.
- Create another output stream object.
- Create another object for “BufferedWriter”.
- Prompt the user to enter student id.
- Get the student id from the user.
- Execute “while” loop till the string is equal to “zzz”,
- Prompt the user to enter first name.
- Get the first name from the user.
- Prompt the user to enter last name.
- Get the last name from the user.
- Prompt the user to enter grade point average.
- Get the grade point average from the user.
- Concatenate the resultant string.
- Check if gpa is less than cutoff value,
-
- Write the data into the corresponding file.
- Otherwise,
-
- Write the data into another file.
- Prompt the user to enter the input.
- Get the input from the user.
- Close both the files.
- Catch if exception occurs,
- Handle the exception.
- Define the method “main()”,
b.
Program Plan Intro
Printing the details of student progression
Program plan:
- Import necessary packages and create a class “StudentsStanding2”,
- Define the method “main()”,
- Get both the file paths.
- Initialize required string variable.
- Execute “try” statement,
- Create input stream object.
- Create object for “BufferedReader”.
- Create another input stream object.
- Create another object for “BufferedReader”.
- Print heading.
- Read line from a file.
- Execute till there are records,
- Call the method “display()”.
- Read next line from a file.
- Print another heading.
- Read line from another file.
- Execute till there are records,
- Call the method “display()”.
- Read next line from a file.
- Close both the files.
- Catch if exception occurs,
- Handle the exception.
- Define the method “display()”,
- Create string array.
- Declare necessary variables.
- Set the cutoff value.
- Split the values using the delimiter “,”.
- Assign the value for string id.
- Assign the value for first name.
- Assign the value for last name.
- Assign the value for gpa.
- Print the resultant string to the console.
- Define the method “main()”,
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Chapter 13 Solutions
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