×
Samples Blogs Make Payment About Us Reviews 4.9/5 Order Now

Create A Program to Calculate Test Score in Java Assignment Solution

July 02, 2024
Donna J. Seymour
Donna J.
🇸🇬 Singapore
Java
Donna J. Seymour, PhD in Computer Science from an esteemed Austrian university, with 8 years of experience in Java assignments. Specializing in advanced Java programming and academic mentoring, ensuring robust solutions and student success.
Key Topics
  • Instructions
    • Objective
  • Requirements and Specifications
Tip of the day
Use the REPL (Read-Eval-Print Loop) to test your code interactively, and practice writing concise, readable expressions to harness Scala’s powerful syntax effectively.
News
In 2024, universities abroad, like Dublin City University, have introduced cutting-edge programming courses, including Computer Engineering programs focusing on AI and machine learning.

Instructions

Objective

Write a program to calculate test score in java language.

Requirements and Specifications

Program-to-calculate-test-score-in-java
Program-to-calculate-test-score-in-java 1
Program-to-calculate-test-score-in-java 2
Program-to-calculate-test-score-in-java 3

Source Code

import java.util.Scanner; public class TestScore { private static Scanner scanner; public static int readStudentNum() { System.out.print("Enter number of students: "); while(true) { try { int n = Integer.parseInt(scanner.nextLine()); if (n <= 0) { throw new IllegalArgumentException(); } return n; } catch (Exception e) { System.out.print("Invalid try again: "); } } } public static void readScores(String[] names, double[] scores) { int n = names.length; System.out.println("Enter the name and test score for the students:"); for (int i = 0; i String[] parts = scanner.nextLine().trim().split("\\s+"); names[i] = parts[0]; scores[i] = Math.round(Double.parseDouble(parts[1]) * 100) / 100.0; } } public static double average(double[] scores) { int n = scores.length; double sum = 0.0; for (double score : scores) { sum += score; } return sum / n; } public static double variance(double[] scores) { int n = scores.length; double avg = average(scores); double sum = 0.0; for (double score : scores) { double diff = score - avg; sum += diff * diff; } return sum / (n - 1); } public static void sort(String[] names, double[] scores) { int n = names.length; for (int i = 0; i for (int j = 0; j if (scores[j] > scores[j+1]) { String stmp = names[j]; names[j] = names[j+1]; names[j+1] = stmp; double dtmp = scores[j]; scores[j] = scores[j+1]; scores[j+1] = dtmp; } } } } public static void main(String[] args) { scanner = new Scanner(System.in); int n = readStudentNum(); String[] names = new String[n]; double[] scores = new double[n]; readScores(names, scores); System.out.println("***here is what I have for your data***"); for (int i = 0; i System.out.println(names[i] + " " + scores[i]); } sort(names, scores); System.out.println("***Sorted data***"); for (int i = 0; i System.out.println(names[i] + " " + scores[i]); } System.out.println("Average = " + Math.round(average(scores) * 100) / 100.0); System.out.println("Variance = " + Math.round(variance(scores) * 100) / 100.0); } }

Similar Samples

Explore our curated samples at ProgrammingHomeworkHelp.com to experience our expertise in Java, Python, C++, and other programming languages. These examples showcase our dedication to delivering accurate and efficient solutions for various programming challenges. Discover how our samples can inspire and guide you through your programming assignments.