GradingSystem.java

package _03_03b;

public class GradingSystem {

  public boolean isAPass(int percentage) {
    // Return true if the percentage is higher than or equal to 60.
    // Otherwise return false.
    if (percentage >= 60) {
      return true;
    }
    return false;
  }

  public char getGrade(int percentage) {
    // If the percentage is 90 or above, return 'A'.
    if (percentage >= 90) {
      return 'A';
    }
    // If it's 80-89, return 'B'.
    else if (percentage >= 80 && percentage <= 89) {
      return 'B';
    }
    // If it's 70-79, return 'C'.
    else if (percentage >= 70 && percentage <= 79) {
      return 'C';
    }
    // If it's 60-69, return 'D'.
    else if (percentage >= 60 && percentage <= 69) {
      return 'D';
    }
    // If it's less than 60, return 'F'.
    else if (percentage < 60) {
      return 'F';
    }
    return 'X';
  }

  public String retakeMessage(int percentage, boolean allowedToRetake) {
    // If percentage is less than 60 and allowedToRetake is true, return a String
    // that says "The student has been entered for a retake."
    if (percentage < 60 && allowedToRetake) {
      return "The student has been entered for a retake.";
    }
    // If percentage is less than 60 and allowedToRetake is false, return a String
    // that says "The student is not allowed to retake this exam."
    else if (percentage < 60 && !allowedToRetake) {
      return "The student is not allowed to retake.";
    }
    // If percentage is 60 or higher, return a String that says "A retake is not
    // required."
    if (percentage > 59) {
      return "A retake is not required";
    }
    return "";
  }

}