import java.util.ArrayList;
 public class Mahasiswa extends id
 {
   private String NRP;
   private ArrayList<Matkul> m_k;
   private ArrayList<Buku> bk;
   public Mahasiswa(String iNama, String iNRP, String iAlamat, int iUmur)
   {
     super(iNama, iAlamat, iUmur);
     NRP = iNRP;
     m_k = new ArrayList<Matkul>();
     bk = new ArrayList<Buku>();
   }
   public void addMK(Matkul theMK)
   {
     m_k.add(theMK);
   }
   public void dropMK(Matkul theMK)
   {
     m_k.remove(theMK);
   }
   public void MeminjamBuku(Buku theBuku)
   {
     bk.add(theBuku);
   }
   public void PengembalianBuku(Buku theBuku)
   {
     bk.remove(theBuku);
   }
   public void print()
   {
     super.print();
     System.out.println("NRP:" + NRP);
     for(Matkul matakuliah : m_k)
     {
       System.out.println("Mata Kuliah: "+ matakuliah.getMatkul());
       System.out.println("Kelas: "+ matakuliah.getKls());
       System.out.println("Dosen: "+ matakuliah.getDsn());
     }
     for(Buku BUKU : bk)
     {
       System.out.println("Judul Buku: "+ BUKU.getBuku());
     }
   }
   public void printd()
   {
     super.print();
     System.out.println("NRP:" + NRP);
   }
 }