Lat. 5 | ASD 01b

/******************* Mahasiswa.java **********************/
package lat5;
import java.util.*;

public class Mahasiswa implements Comparable {
    private String nama;
    private String nrp;
    private Float nilai;

    public Mahasiswa(){
    }
    public void setNama(String nama) {
        this.nama = nama;
    }
    public void setNrp(String nrp) {
        this.nrp = nrp;
    }
    public void setNilai(float nilai) {
        this.nilai = nilai;
    }
    public String getNama() {
        return nama;
    }
    public String getNrp() {
        return nrp;
    }
    public Float getNilai() {
        return nilai.floatValue();
    }
    @Override
    public int compareTo(Object mhsLain) throws ClassCastException {
        if(!(mhsLain instanceof Mahasiswa))
            throw new ClassCastException("Harus dari class Mahasiswa");
        float nilaiLain = ((Mahasiswa) mhsLain).getNilai();
        int out;
        if(this.nilai < nilaiLain) out = -1;
        else if(this.nilai > nilaiLain) out = 1;
        else out = 0;
        return out;
    }
}

/******************* mainMahasiswa.java **********************/
package lat5;
import java.util.*;

public class mainMahasiswa {
    public static void main(String[] args) {
        String nama[] = {"Eko","Firman","Ida","Aji","Febri","Agus","Budi","Ajeng","Ilham","Anton"};
        Mahasiswa[] mhs = new Mahasiswa[10];
        float min = 60.0f;
        float max = 100.0f;

        for(int i=0; i<10; i++){
            Random rand = new Random();
            float nilai = rand.nextFloat() * (max - min) + min;
            mhs[i] = new Mahasiswa();
            mhs[i].setNama(nama[i]);
            mhs[i].setNrp("" + (30 + i));
            mhs[i].setNilai(nilai);
        }

        System.out.println("Data awal");
        for(int i=0; i<10; i++){
            Mahasiswa data = mhs[i];
            System.out.println(data.getNrp() + " - " + data.getNama() + " : " + data.getNilai());
        }
        Arrays.sort(mhs);

        System.out.println("\nSetelah diurutkan berdasarkan nilai");
        for(int i=0; i<10; i++){
            Mahasiswa data = mhs[i];
            System.out.println(data.getNrp() + " - " + data.getNama() + " : " + data.getNilai());
        }
    }
}