private void jButton11ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton11ActionPerformed
        try {
            // TODO add your handling code here:
            jTextField3.setText("");
            jTextField4.setText("");
            recordPekanMhs = null;
            isiTabeldataNilaiMhs();
            recordProyekII = null;
            isiTabelPilihProjMhs("II");
            recordProyekI = null;
            isiTabelPilihProjMhs("I");
            namaKelompokMhs.setText("");
            namaDosenMhs.setText("");
            recordTemanKelompok = null;
            isiTabelTemanKelompok();
            recordMasuk = null;
            recordKeluar = null;
            isiTabelMasuk("siswa");
            isiTabelKeluar("siswa");
            jTextField4.setText("");
            jTextField3.setText("");

        } catch (SQLException ex) {
        } finally {
            kosongAwal();
            this.keluar();
        }
    }