java - Write a program that reads student scores, gets the best score, and then assigns grades

Java - Write a program that reads student scores, gets the best score, and then assigns grades

Sure, here's a simple Java program that reads student scores, finds the best score, and assigns grades based on a predefined grading scale:

import java.util.Scanner; public class GradeAssignment { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); // Read the number of students System.out.print("Enter the number of students: "); int numStudents = scanner.nextInt(); // Initialize variables to keep track of best score String bestStudent = ""; int bestScore = Integer.MIN_VALUE; // Read student scores and find the best score for (int i = 1; i <= numStudents; i++) { System.out.print("Enter the name of student " + i + ": "); String studentName = scanner.next(); System.out.print("Enter the score of student " + i + ": "); int studentScore = scanner.nextInt(); if (studentScore > bestScore) { bestScore = studentScore; bestStudent = studentName; } } // Output the best score System.out.println("The student with the best score is: " + bestStudent + " with a score of " + bestScore); // Assign grades based on a simple grading scale System.out.println("Assigning grades..."); assignGrades(numStudents, scanner); // Close the scanner scanner.close(); } public static void assignGrades(int numStudents, Scanner scanner) { for (int i = 1; i <= numStudents; i++) { System.out.print("Enter the name of student " + i + ": "); String studentName = scanner.next(); System.out.print("Enter the score of student " + i + ": "); int studentScore = scanner.nextInt(); // Assign grades based on a simple grading scale char grade; if (studentScore >= 90) { grade = 'A'; } else if (studentScore >= 80) { grade = 'B'; } else if (studentScore >= 70) { grade = 'C'; } else if (studentScore >= 60) { grade = 'D'; } else { grade = 'F'; } // Output the grade System.out.println(studentName + "'s grade is: " + grade); } } }

This program prompts the user to input the number of students, their names, and their scores. It then finds the student with the highest score, assigns grades based on a simple grading scale (A, B, C, D, F), and outputs each student's grade.

Examples

  1. How to read student scores in Java program?

    Description: This query seeks information on how to read student scores from user input in a Java program.

    import java.util.Scanner; public class StudentScoreReader { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.print("Enter the number of students: "); int numStudents = scanner.nextInt(); int[] scores = new int[numStudents]; System.out.println("Enter the scores of students:"); for (int i = 0; i < numStudents; i++) { System.out.print("Score of student " + (i + 1) + ": "); scores[i] = scanner.nextInt(); } scanner.close(); // Process scores... } }

  2. How to find the best score in Java?

    Description: This query aims to find the highest score among the student scores provided.

    public class BestScoreFinder { public static int findBestScore(int[] scores) { int bestScore = scores[0]; for (int score : scores) { if (score > bestScore) { bestScore = score; } } return bestScore; } }

  3. Assigning grades based on student scores in Java

    Description: This query focuses on how to assign grades to students based on their scores in a Java program.

    public class GradeAssigner { public static char assignGrade(int score, int bestScore) { double percentage = (double) score / bestScore * 100; if (percentage >= 90) { return 'A'; } else if (percentage >= 80) { return 'B'; } else if (percentage >= 70) { return 'C'; } else if (percentage >= 60) { return 'D'; } else { return 'F'; } } }

  4. How to calculate percentage in Java?

    Description: This query seeks information on calculating the percentage of a score relative to the best score.

    public class PercentageCalculator { public static double calculatePercentage(int score, int bestScore) { return ((double) score / bestScore) * 100; } }

  5. Java program to assign grades based on percentage

    Description: This query focuses on implementing a Java program to assign grades based on the percentage obtained.

    public class GradeAssigner { public static char assignGrade(double percentage) { if (percentage >= 90) { return 'A'; } else if (percentage >= 80) { return 'B'; } else if (percentage >= 70) { return 'C'; } else if (percentage >= 60) { return 'D'; } else { return 'F'; } } }

  6. How to display student grades in Java program?

    Description: This query aims to understand how to display the assigned grades for each student in a Java program.

    public class GradeDisplay { public static void displayGrades(char[] grades) { for (int i = 0; i < grades.length; i++) { System.out.println("Student " + (i + 1) + " has been assigned grade: " + grades[i]); } } }

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