Chapter 8, Problem 9PE

Program Plan Intro

Grade book of students

Program plan:

Filename: “Student.java”

• Import the required packages.
• Define the “Student” class
  • Create an array list to store the scores of students.
  • Create a string variable.
• Define the constructor “Student()”.
  • Initialize the array elements.
• Define a method “getName()” to get the score of individual students.
  • Return the name.
• Define a method “addScores()” to get the score of individual students.
  • Set the scores to the array list.
• Define a method “sum()” to get the final score of individual students.
  • Create a double variable.
  • Iterate a for loop
    • Calculate the total.
      • Return the value of “total”.
• Define a method “minimum()” to get the minimum score of individual students.
  • If the size of the array list becomes zero,
    • Return zero.
      • Define a variable “smallest”.
      • Iterate a “for” loop.
        • If the condition is true,
        • • Set the value of “smallest”.
      • Return the value of “smallest”.
• Define a method “getFinalScore ()” to get the final scores of individual students.
  • If the size of the array list becomes zero,
    • Return zero.
      • If the size of the array list becomes 1,
        • Return the array element.
      • If the array size is mort ham 1,
        • Return the calculated value.

Filename: “GradeBook.java”

• Import the required packages.
• Define the “GradeBook” class
  • Define the “main()” method.
    • Create an object for “Scanner” class.
    • Create an array list to store the scores of students.
    • Create a Boolean variable.
    • Iterate a “while” loop.
      • Prompt the user to enter the name of the student.
      • Scan for the value.
      • If the user enters “Q”, stop reading.
      • Else, add the names to array list.
    • Iterate a “for” loop
      • Prompt the user to enter the score of the student.
      • Iterate a “while” loop.
        • Add the score to the array list.
        • • Read the next “Q”.
          • Iterate a “for” loop.
            • Print the final score.