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- import java.util.ArrayList;
- public class Database
- {
- private ArrayList<Mahasiswa> mahasiswa;
- private ArrayList<Dosen> dosen;
- private ArrayList<Pegawai> pegawai;
- public Database()
- {
- mahasiswa = new ArrayList<Mahasiswa>();
- dosen = new ArrayList<Dosen>();
- pegawai = new ArrayList<Pegawai>();
- }
- public void addMahasiswa(Mahasiswa Themhs)
- {
- mahasiswa.add(Themhs);
- }
- public void addDosen(Dosen dsn)
- {
- dosen.add(dsn);
- }
- public void addPegawai(Pegawai pgw)
- {
- pegawai.add(pgw);
- }
- public void listMahasiswa()
- {
- for(Mahasiswa mhs : mahasiswa)
- {
- mhs.print();
- System.out.println();
- }
- }
- public void listDosen()
- {
- for(Dosen dsn : dosen)
- {
- dsn.prnt();
- System.out.println();
- }
- }
- public void listPegawai()
- {
- for(Pegawai pgw : pegawai)
- {
- pgw.prnt();
- System.out.println();
- }
- }
- public void delMahasiswa(Mahasiswa Themhs)
- {
- mahasiswa.remove(Themhs);
- }
- public void delPegawai(Pegawai pgw)
- {
- pegawai.remove(pgw);
- }
- public void delMahasiswa(Dosen dsn)
- {
- dosen.remove(dsn);
- }
- }
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