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.

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.