void isiTabeSiswa() {
        int x = 0;
        Object data[][] = new Object[recordSiswa.size()][6];
        for (Mahasiswa m : recordSiswa) {
            data[x][0] = m.getNim();
            data[x][1] = m.getNama();
            data[x][2] = m.getKelas();
            data[x][3] = m.getStatus();
            data[x][5] = m.getJenisKelamin();
            data[x][4] = m.getJabatan();
            x++;
        }
        String judul[] = {"nim", "nama", "kelas", "status", "jabatan", "kelamin"};
        tabelSiswaAdmin.setModel(new DefaultTableModel(data, judul));
        jScrollPane7.setViewportView(tabelSiswaAdmin);
    }