jendoe0110.github.io/part1page.html at main · jendoe0110/jendoe0110.github.io · GitHub

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<!DOCTYPE html>
<html>
<head>
    <title>Grade Calculator</title>
</head>
<body>
    <h1>Part 1: Student Grades</h1>

    <h2>Grade Calculator</h2>

    <form id="gradeForm">
        <label for="hwAvg">Homework Average:</label>
        <input type="number" id="hwAvg" name="hwAvg" min="0" max="100" required><br><br>

        <label for="midExam">Mid-Term Exam Score:</label>
        <input type="number" id="midExam" name="midExam" min="0" max="100" required><br><br>

        <label for="finalExam">Final Exam Score:</label>
        <input type="number" id="finalExam" name="finalExam" min="0" max="100" required><br><br>

        <label for="participation">Participation:</label>
        <input type="number" id="participation" name="participation" min="0" max="100" required><br><br>

        <input type="button" value="Calculate" onclick="calculateGrade()">
        <input type="button" value="Clear Form" onclick="clearForm()">
    </form>

    <div id="result"></div>

    <script>
        function calculateGrade() {
            // Get input values
            var hwAvg = parseFloat(document.getElementById("hwAvg").value);
            var midExam = parseFloat(document.getElementById("midExam").value);
            var finalExam = parseFloat(document.getElementById("finalExam").value);
            var participation = parseFloat(document.getElementById("participation").value);

            // Check for valid input
            if (isNaN(hwAvg) || isNaN(midExam) || isNaN(finalExam) || isNaN(participation) ||
                hwAvg < 0 || hwAvg > 100 || midExam < 0 || midExam > 100 || finalExam < 0 || finalExam > 100 || participation < 0 || participation > 100) {
                document.getElementById("result").innerHTML = "Invalid input. Please enter valid grades (0-100).";
                return;
            }

            // Calculate final average
            var finalAverage = (.5 * hwAvg) + (.2 * midExam) + (.2 * finalExam) + (.1 * participation);

            // Determine letter grade
            var letterGrade = "";
            if (finalAverage >= 90) {
                letterGrade = "A";
            } else if (finalAverage >= 80) {
                letterGrade = "B";
            } else if (finalAverage >= 70) {
                letterGrade = "C";
            } else if (finalAverage >= 60) {
                letterGrade = "D";
            } else {
                letterGrade = "F";
            }

            // Display result
            var resultMessage = "Final Average: " + Math.round(finalAverage) + "<br>Letter Grade: " + letterGrade;
            if (letterGrade == "D" || letterGrade == "F") {
                resultMessage += "<br>Student must retake the course";
            }
            document.getElementById("result").innerHTML = resultMessage;
        }

        function clearForm() {
            document.getElementById("gradeForm").reset();
            document.getElementById("result").innerHTML = "";
        }
    </script>

<a href="homework3.html">Return to Homework 3</a>

</body>
</html>
```