KHS.java

import java.util.ArrayList;

public class KHS {
    private ArrayList<MataKuliah> mataKuliahList;
    private ArrayList<String> nilaiHurufList = new ArrayList<>();
    private static final String[] VALID_NILAI = {"A", "B", "C", "D", "E"};

    public KHS(ArrayList<MataKuliah> mataKuliahList) {
        this.mataKuliahList = mataKuliahList;
        for (int i = 0; i < mataKuliahList.size(); i++) {
            nilaiHurufList.add("E"); // Default nilai huruf adalah 'E'
        }
    }

    public void setNilaiHuruf(int index, String nilaiHuruf) {
        if (index >= 0 && index < mataKuliahList.size() && isValidNilai(nilaiHuruf)) {
            nilaiHurufList.set(index, nilaiHuruf.toUpperCase());
        }
    }

    private boolean isValidNilai(String nilaiHuruf) {
        for (String valid : VALID_NILAI) {
            if (valid.equalsIgnoreCase(nilaiHuruf)) {
                return true;
            }
        }
        return false;
    }

    public double hitungIPSemester() {
        int totalKredit = 0;
        double totalNilaiMutu = 0;

        for (int i = 0; i < mataKuliahList.size(); i++) {
            MataKuliah mk = mataKuliahList.get(i);
            int nilaiAngka = konversiNilaiHuruf(nilaiHurufList.get(i));
            int nilaiMutu = nilaiAngka * mk.getKredit();
            totalNilaiMutu += nilaiMutu;
            totalKredit += mk.getKredit();
        }

        return totalKredit == 0 ? 0 : totalNilaiMutu / totalKredit;
    }

    public void tampilkanKHS() {
        System.out.println("\nKartu Hasil Studi (KHS):");
        System.out.println("Kode Mata Kuliah\tKredit\tNilai Huruf\tNilai Angka\tNilai Mutu");
        int totalKredit = 0;
        double totalNilaiMutu = 0;

        for (int i = 0; i < mataKuliahList.size(); i++) {
            MataKuliah mk = mataKuliahList.get(i);
            int nilaiAngka = konversiNilaiHuruf(nilaiHurufList.get(i));
            int nilaiMutu = nilaiAngka * mk.getKredit();
            System.out.printf("%s\t\t\t%d\t%s\t\t%d\t\t%d\n",
                    mk.getKode(), mk.getKredit(), nilaiHurufList.get(i), nilaiAngka, nilaiMutu);

            totalKredit += mk.getKredit();
            totalNilaiMutu += nilaiMutu;
        }

        double ipSemester = hitungIPSemester();
        System.out.println("Total Kredit: " + totalKredit);
        System.out.println("Total Nilai Mutu: " + totalNilaiMutu);
        System.out.printf("IP Semester: %.2f\n", ipSemester);
        System.out.println("Status: " + getStatus(ipSemester));
    }

    private int konversiNilaiHuruf(String nilaiHuruf) {
        switch (nilaiHuruf.toUpperCase()) {
            case "A": return 4;
            case "B": return 3;
            case "C": return 2;
            case "D": return 1;
            default: return 0;
        }
    }

    private String getStatus(double ipSemester) {
        if (ipSemester > 3.50) {
            return "Cum Laude";
        } else if (ipSemester > 3.00) {
            return "Sangat Memuaskan";
        } else {
            return "Memuaskan";
        }
    }
}