[ JAVA ] - Program Akhir Nilai Siswa

import java.util.Scanner;

public class App {
    public static void main(String[] args) throws Exception {
        Scanner input = new Scanner(System.in);
        int jmlSiswa;

        // Clear Screen Console
        System.out.print("\033[H\033[2J");
        System.out.flush();

        // Input Jumlah Mahasiswa Yang Akan Menjadi Perulangan
        System.out.println("========[ PROGRAM INPUT DATA NILAI MAHASISWA ]========\n");
        System.out.print("Masukan Jumlah Mahasiswa: ");
        jmlSiswa = input.nextInt();
        input.nextLine();

        // Variabel
        int n1[] = new int[jmlSiswa],
        n2[] = new int[jmlSiswa],
        n3[] = new int[jmlSiswa];

        double  m1[] = new double[jmlSiswa],
        m2[] = new double[jmlSiswa],
        m3[] = new double[jmlSiswa],
        m4[] = new double[jmlSiswa];

        String[] nama = new String[jmlSiswa],
        isNIM = new String[jmlSiswa],
        isHuruf = new String[jmlSiswa];

        // Perulangan Pertama Untuk Input Data Dan Perhitungan
        for(int i = 0; i < jmlSiswa; i++){
            System.out.print("\033[H\033[2J");
            System.out.flush();

            System.out.println("========[ INPUT DATA MAHASISWA ]========\n");
            System.out.print("Masukan NIM: ");
            isNIM[i] = input.nextLine();

            System.out.print("Masukan Nama: ");
            nama[i] = input.nextLine();

            System.out.print("Nilai Tugas: ");
            n1[i] = input.nextInt();

            System.out.print("Nilai UTS: ");
            n2[i] = input.nextInt();

            System.out.print("Nilai UAS: ");
            n3[i] = input.nextInt();
            input.nextLine();

            // Rumus Nilai
            m1[i] = n1[i]*0.15;
            m2[i] = n2[i]*0.35;
            m3[i] = n3[i]*0.50;
            m4[i] = m1[i] + m2[i] + m3[i];

            // Kondisi Letter Ranking
            if((int)m4[i] >= 80){
                isHuruf[i] = "A";
            }else if((int)m4[i] >= 70){
                isHuruf[i] = "B";
            }else if((int)m4[i] >= 60){
                isHuruf[i] = "C";
            }else if((int)m4[i] >= 50){
                isHuruf[i] = "D";
            }else{
                isHuruf[i] = "E";
            }
        }

        // Clear Screen Console
        System.out.print("\033[H\033[2J");
        System.out.flush();

        // Output Judul
        System.out.println("No.\tNIM\tNAMA\tN.TUGAS\tN.UTS\tN.UAS\tN.AKHIR\tN.HURUF");

        // Perulangan Untuk Output
        for(int i = 0; i<jmlSiswa; i++){
            System.out.println(i+1 + "\t" + isNIM[i] + "\t" + nama[i] + "\t" + (int)n1[i] + "\t" + (int)n2[i] + "\t" + (int)m3[i] + "\t" + (int)m4[i] + "\t" + isHuruf[i]);
        }
    }
}